Błażej Gierczyk's research while affiliated with Adam Mickiewicz University and other places

Publications (208)

Article
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In photochemistry the excited-state intramolecular proton transfer process (ESIPT) is often observed as a highly efficient singlet excited state depletion pathway, which in the presence of a strong intramolecular hydrogen bond may proceed on a subpicosecond time scale. The present work describes the suppression of unwanted transoid-trans isomer for...
Article
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3,3-Diphenylbenzo[f]chromene (1) represents an important architectural platform for photochromic systems. Since the practical utility of such chromophores is largely dependent upon the kinetics of coloration and decoloration, elucidating the mechanistic details of these processes is of great value. Toward this end, we studied the photochromic react...
Article
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In 2019–2020 (for 13 months), 21 macrofungi species, both native (14) and inadvertently introduced from warmer regions (7), were found in greenhouses at the Warsaw University Botanic Garden. These included 13 species recorded for the first time in Polish greenhouses. Descriptions and photographs are given for 5 species identified, which are new to...
Article
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We present the electric field-induced absorption (electroabsorption, EA) spectra of the solid neat films of tris(bipyridine) Ru(II) complexes, which were recently functionalized in our group as photosensitizers in dye-sensitized solar cells, and we compare them with the results obtained for an archetypal [Ru(bpy)3] 2+ ion (RBY). We argue that it is...
Article
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The paper presents eleven species of fungi new to the Kampinos National Park. They were found during the studies on wind-damaged areas after the forest was damaged in 2017. Two species new to Poland were described and illustrated ( Nectria nigrescens and Strossmayeria basitricha ). The current number of macromycetes taxa known from the Kampinos Nat...
Article
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Chiral isotrianglimines were synthesized by the [3 + 3] cyclocondensation of (R,R)-1,2-diaminocyclohexane with C5-substituted isophthalaldehyde derivatives. The substituent’s steric and electronic demands and the guest molecules’ nature have affected the conformation of individual macrocycles and their propensity to form supramolecular architecture...
Article
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Granulated chelates are innovative fertilizers that are highly effective and versatile, and they ensure the best start-up effect for plants. The final properties of granules are influenced by the method of their preparation and the used substances. The diameters of the obtained granules, their size range, and the final costs of the produced fertili...
Article
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This paper presents 18 species of fungi that are new to the Kampinos National Park and their buffer zone. Seventeen of these species were found during studies on wind-damaged areas after the forest was damaged in 2017. One species new to Poland has been described and illustrated ( Odonticium septocystidiatum ). A few of the species recorded ( Cilio...
Article
Alkali metal chloroaurates(III) were analysed by laser desorption ionization mass spectrometry. Among a number of generated gas-phase ionic clusters, the unusual ions [MAu 2 Cl 5 ] ⁻ (were M stands for Na, K, Rb, Cs) were detected. The spectra of metastable ions and quantum mechanics calculations show the presence of unprecedented Au(I)-Au(II) inte...
Article
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Wielkopolski National Park is a protected area located in central Wielkopolska, near Poznań City, and is an important refuge to numerous valuable species of plants, fungi, and animals. Through 2019, the project to recognize and catalog the macromycetes of this Park was continued. The current paper presents the results of these studies in the form o...
Article
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The Wielkopolski National Park is located in western Poland, near Poznań City. Its unique postglacial landforms are covered with various (semi)natural and anthropogenic ecosystems. The mycobiota of this Park has been studied for 90 years; however, current state knowledge is still insufficient. In 2018, a few-year- long project on the chorology, ric...
Article
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This work aimed to present the diversity of fungal species in the Poznań- Radojewo park. It was characterized based on literature data, unpublished master’s theses, the authors’ data, as well as data collected during two mycological trips organized by the Mycological Section of the Polish Botanical Society. Between 1980 and 2017, as many as 333 spe...
Article
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Photovoltaic performance of solar cells sensitized with indoline D205 dye and its new derivative comprising alkoxysilyl anchoring unit (D205Si) in the [Cu(tmby)2](TFSI)2/1 (tmby = 4,4’,6,6’-tetramethyl-2,2’-bipyridine, TFSI = bis(trifluoromethane)sulfonimide) redox couple mediated systems, were studied in the presence of various titania/dye/electro...
Article
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Water is an astonishing substance whose unique properties are crucial for the conditions on our planet, making it possible for life as we know it to exist. We might ask, is water an "indifferent" substance? There are a number of ways such a question might be answered.
Article
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Buglossoporus quercinus is widely distributed across Europe, within the range of Quercus robur. Throughout the area, in which it appears, it is rare or very rare. B. quercinus is associated with large old oaks (Quercus, usually Q. robur), whose numbers are decreasing due to ongoing changes in the environment. It was added to the Red Lists of fungi...
Article
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Zaniewski P. T., Szczepkowski A., Gierczyk B., Kujawa A., Ślusarczyk T., Fojcik B. 2019. Pionowe zróżnicowanie bogactwa i składu gatunkowego myko−, licheno− i briobioty drzew powiatrołomowych w Kampinoskim Parku Narodowym. Sylwan 163 (12): 980−988. DOI: https://doi.org/10.26202/sylwan.2019091. Vertical distribution of species richness of various g...
Article
A series of new bis(benzo[h]quinolinato) Ir(III) complexes with modified β-ketoiminato ancillary ligands were synthesized, and their electrochemical, photophysical properties were determined with the support of theoretical calculations. Moreover, all the synthesized heteroleptic Ir(III) complexes were examined as dopants of the host–guest type emis...
Article
The authors of corrected paper, during the further work in the topic, recognized that inappropriate conditions of electrochemical (voltammetric) experiments have been applied causing that incorrect results have been obtained and described in the original paper. All the experiments have been repeated in more appropriate conditions, in particular, th...
Poster
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Photovoltaic performances of solar cells sensitized with indoline D205 dye1 and its novel derivative comprising alkoxysilyl anchoring unit (D205Si) in the [Cu(tmby)2](TFSI)2/1 (tmby = 4,4’,6,6’-tetramethyl-2,2’-bipyridine)2 redox couple mediated systems, were studied in the presence of titania| dye| electrolyte interface modifications - Cucurbit[7]...
Article
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We present interesting findings from the final year (2018) of the project concerning fungi in the fire-damaged forests in Kampinos National Park (central Poland). Seven taxa have been collected which are new to the park, one species ( Scutellinia patagonica ) hitherto unrecorded in Poland has been found. The current number of macromycetes taxa know...
Article
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The Bieszczady Mts – a mountain range in SE Poland is a hot spot of fungal richness and diversity in Poland. This paper summarizes 5 years of studies in the Bieszczady Mts, as well as previously published research. A total of 1377 macromycetes taxa were found, including many (464) which were protected, red-listed, or very rare in Poland. Thirty-eig...
Article
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The first locality of Pleuroflammula ragazziana (Bres.) E. Horak in Poland, found in 2017 in Debrza Nature Reserve (Tarnów District), is reported herein. The global distribution of this species was mapped. The morphology of this species, based on the specimens from Poland, is presented.
Article
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Continuation of the mycological study of the fire-damaged pine forest in Kampinos National Park in central Poland in 2017 produced interesting new findings. Among the taxa collected, 36 were new to the park, six had not been hitherto reported from Poland ( Calycellina araneocincta , Ciliolarina aff. laetifica , Clitocybe metachroides , Galerina cer...
Article
Three isomers of trifluoromethylphenylboronic acids were synthesized and characterized by 1H, 13C, 11B and 19F NMR. The investigated compounds exhibit high resistance to protodeboronation reaction. Molecular and crystal structure of these compounds was determined by single crystal XRD method. The compounds form typical hydrogen-bonded dimers with t...
Article
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Mycological data published in the years 2012-2017 in six papers on the exhibitions of fungi of the Bialowieza Forest (NE Poland) was analysed to demonstrate that incidental, few days long field studies in that region may provide interesting and valuable data on fungal diversity and richness. The discussed papers, in addition to the lists of species...
Article
Rationale The main feature of the fragmentation of [M‐H]‐ ions of methoxylated flavonoids is the loss of methyl radical (formation of [M‐H‐CH3]‐• product ion). Subsequent decomposition of [M‐H‐CH3]‐• product ions may be useful for identification of a given compound by HPLC/MS. This paper describes how the selected diagnostic fragment ions can be us...
Article
Basic photovoltaic parameters of the cells sensitized with a popular indoline D149 dye, containing carboxyl anchoring group, were compared with those of the cells sensitized with the dye modified by the addition of alkoxysilyl anchoring moiety. Desorption measurements of both compounds showed that the time constant of this process was longer for th...
Book
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Niniejsze opracowanie o charakterze monograficznym stanowi owoc wieloletnich prac monitoringowych obejmujących różnorodne grupy zwierząt i roślin, stanowiąc zaktualizowany i kompleksowy zestaw wiedzy na temat walorów przyrodniczych lokalnych ekosystemów leśnych i nieleśnych. Prace te prowadzone były na przestrzeni ostatnich 10 lat i w głównej mierz...
Article
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The paper presents the results of several years of mycological studies carried out in Poland, in the Western Sudety Mountains (the Karkonosze, Kaczawskie, Izera, and Rudawy Janowickie mountains), Western Sudety Foothills (the Izerskie and Kaczawskie Foothills), and adjacent regions, such as the Jelenia Góra Valley, Lubawska Gate, and Sudety Forelan...
Article
Two new low-cost polymeric adsorbents have been obtained in a simple reaction of diethylenetriamine (DETA) or pentaethylenehexamine (PEHA) with 1,3,5-tris(6-isocyanatohexyl)-1,3,5-triazinane-2,4,6-trione (HDI-IC). The reagents used for the synthesis are inexpensive and are produced yearly in high quantities to be applied in various industrial proce...
Article
In this paper we report studies of the electronic structure as well as photophysical and emissive properties of family of new heteroleptic iridium(III) complexes of the general formula [Ir(bzq)2(N^O)] with...
Article
The effect of anchoring group position and, in consequence, the orientation of the ruthenium dye molecule on titania surface on the performance of dye-sensitized solar cells has been studied intensively. Three model ruthenium sensitizing dyes bearing carboxylic anchoring group in ortho, meta or para position were synthesized and well characterized...
Article
Gas phase decompositions of protonated methyl benzoate and its conjugates have been studied by using electrospray ionization-collision induced dissociation-tandem mass spectrometry (ESI-CID-MS/MS). Loss of CO2 molecule, thus transfer of methyl group, has been observed. In order to bestter understand this process the theoretical calculations have be...
Article
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A commercially available biliverdin sample was analyzed by means of HPLC/ESI–MS and NMR spectroscopy. It was been found that beside the main IXα 5Z,10Z,15Z isomer, the sample contains also the geometric isomer IXα 5Z,10Z,15E. It was also found the isomers behave differentially upon “in-source” fragmentation in negative ion mode (in contrast to the...
Article
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A new coprinoid fungus, Coprinopsis rugosomagnispora, is described from Poland (Central Europe). Its macromorphological characters are similar to species belonging to the subsection Nivei of Coprinus s.l. However, C. rugosomagnispora has unique micromorphological characters: very large, ornamented spores, voluminous basidia and cystidia, and smooth...
Article
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Sarcodontia crocea is a fungus relatively rarely recorded in Central and Northern Europe, where as a parasite it grows mainly on old apple trees. The most recent data on the occurrence of this fungus in Poland are presented in this study. Seven new localities of S. crocea are reported, found in the regions of Mazowsze, Podkarpacie, Ziemia Łódzka, a...
Article
Gas phase decomposition of the ions [M + PbNO3]⁺ (M stands for fluoro-substituted N-nitrophenylaza-crown ether conjugate), has been studied by the electrospray ionization-collision induced dissociation-tandem mass spectrometry (ESI-CID-MS/MS). The conjugates containing hydrogen atom at ortho position to the crown moiety, form abundant fragment ions...
Article
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The paper presents 32 species of macrofungi new to the Kampinos National Park, found during the studies on fire-damaged areas after the forest fires in 2015. Three species new to Poland were described and illustrated ( Calycellina leucella , Exobasidium juelianum , and Gymnopilus decipiens ). Four species from Polish red list of macrofungi have bee...
Article
Rationale: Coordination of a metal cation by a nitro group is rare and the interaction between them is usually weak. Examples of complexes in which such an interaction takes place are metal complexes of cyclams containing nitrophenyl or nitrobenzyl substituents. It seemed to be interesting to check if in the complexes of respective crown ether con...
Article
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22nd Exhibition of Fungi of the Białowieża Forest was held on September 16-18, 2016 in Białowieża. Sporocarps of over 200 species of macrofungi were presented. The Exhibition was accompanied by many educational events, organised by the staff of the Education Centre of the Białowieski National Park. This paper presents the list of fungi presented at...
Article
The paper reports a preliminary study of fungal species diversity on 28 permanent plots in lime-hornbeam, riparian, ałder, fresh coniferous and marshy coniferous forests in the Biatowieia Forest, aimed at assessing the diversity of agaricoid, boletoid and hypogeous fungi in various plant communities and under different levels of protection. Long pe...
Article
Record laboratory efficiencies of dye-sensitized solar cells have been recently reported using an alkoxysilyl-anchor dye, ADEKA-1 (over 14 %). In this work we use time-resolved techniques to study the impact of key preparation factors (dye synthesis route, addition of co-adsorbent, use of cobalt-based electrolytes of different redox potential, crea...
Article
Gas phase decomposition of the ions [M(NO2)n]⁻ (M stands for metal), [ZnI(NO2)2]⁻, [Phen + ZnNO2]⁺ and [Phen + ZnNO3]⁺ (Phen stands for phenanthroline) have been studied by using electrospray ionization–collision induced dissociation–tandem mass spectrometry (ESI–CID–MS/MS). It was found that nitrite anion can be regarded as good oxygen donor anion...
Article
A one-pot synthesis of chiral [4 + 6] tetrahedral cage compounds containing a salen fragment on each face is presented. The formation of the [4 + 6] products remains in contrast to reaction of 1,3,5-triformylphloroglucinol with chiral diamines where [2 + 3] keto-enamine pseudocyclophanes are formed exclusively. The presence of OH groups determine t...
Article
Four isomeric fluoro-2-formylphenylboronic acids were synthesized and characterized by 1H, 13C, 19F and 17O NMR. Molecular and crystal structure of two compounds was determined by single crystal XRD method. pKa values of all the isomers have been determined by spectrophotometric method and compared with the results for the corresponding benzoxaboro...
Chapter
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The kingdom of Fungi is incredibly heterogeneous and numerous group of living organisms estimated at 1.5 million species worldwide. About 20% of the so far described fungal taxa belong to the so-called macromycetes – artificial group characterized by forming a generative structures visible with the naked eye. Up to date, about 4250 of macromycetes...
Article
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The paper presents the last part of the results of the short-term inventory of fungi species in the Biebrza National Park and synthesises all the data gathered during two surveys, including the information published by other authors. The main body of research is focused on a survey of macrofungi identified with morphology-based methods. In case of...
Article
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The studies of macromycetes on the area currently occupied by the Kampinoski National Park (KPN) lasted for nearly 140 years. Only ca. 400 fungi species had been mentioned from this area until 2012. In years 2012-2014 five-person research team found 1411 fungi species in the area of KPN. Considering the literature data, the current number of specie...
Article
Compounds containing a urea or thiourea moiety form complexes with anions thanks to the ability to form quite strong hydrogen bonds. We have synthesized 1,3-bis(3-(2-pyridylureido)propyl)-1,1,3,3-tetramethyldisiloxane (1). Compound 1 contains two urea moieties connected by a long flexible linker; thus, it should be able to adopt a structure suitabl...
Article
Solutions containing naproxen, its methyl ester and Cu2+, or naphthalene acetic acid, its methyl ester and Cu2+ was analyzed by using electrospray ionization mass spectrometry. As a result of interaction between Cu2+ and aromatic system (Cu2+-π interaction), the respective molecular ions were obtained. The interactions of Cu2+ with -COOH and -COOCH...
Article
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21st Exhibition of Fungi of the Białowieża Forest was held on September 19-20, 2015 in Education Center of the Białowieski National Park. Fruiting bodies of merely 103 fungi species were presented because of the prevailing drought in the area. As every year, the organization of the exhibition provided an opportunity to collect new data on mycobiota...
Article
Application of a flowing atmospheric-pressure afterglow ion source for mass spectrometry (FAPA-MS) for the analysis of designer drugs is described. In this paper, we present application of FAPA MS for identification of exemplary psychotropic drugs: JWH-122, 4BMC, Pentedrone, 3,4-DNNC and ETH-CAT. We have utilized two approaches for introducing samp...
Article
A procedure for studying "dynamic structural behavior" of large chiral macrocycles is presented. Ion mobility MS, diffusion-ordered NMR spectroscopy (DOSY NMR), and optical rotation (OR) measurements, supported by calculations, are used together as effective complementary methods to study dynamic formation of noncovalent aggregates. It is shown tha...
Article
5-Fluoro-2,1-benzoxaborol-1(3H)-ol, a potent antifungal drug also known as Tavaborole or AN2690, has been compared with its three isomers in terms of its activity against several fungi as well as pKa and multinuclear NMR characterization. The molecular and crystal structure of 6-fluoro-2,1-benzoxaborol-1(3H)-ol was determined and compared with that...