Grzegorz Cichowicz

Grzegorz Cichowicz
University of Warsaw | UW · Research Laboratory of Theoretical Chemistry and Crystallography

Master of Science

About

23
Publications
1,925
Reads
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130
Citations
Citations since 2016
22 Research Items
129 Citations
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
2016201720182019202020212022051015202530
Additional affiliations
September 2015 - present
University of Warsaw
Position
  • PhD Student

Publications

Publications (23)
Article
Full-text available
Nanocomposites combining magnetic and plasmonic properties are very attractive within the field of surface-enhanced Raman scattering (SERS) spectroscopy. Applications presented so far take advantage of not only the cooperation of both components but also synergy (enhanced properties), leading to multi-approach analysis. While many methods were prop...
Article
Full-text available
The discovery of properties and applications of unknown materials is one of the hottest research areas in materials science. In this work, we navigate a route towards these goals by the development of a new type of graphyne nanostructure. It is synthesised by a Sonogashira cross-coupling reaction of 1,3,5-triethynylbenzene with cyanuric chloride re...
Article
The crystal structure of new Mg 9 Ni 6 Ga 14 and Mg 3 Ni 2 Ga compounds were investigated by single-crystal diffraction. Both structures can be described as three-core-shell cluster compounds. In the Mg 6 Ni 9 Ga 14 structure, the [Ni 6 Ga 6 ] icosahedron is encapsulated within the [Mg 20 ] dodecahedron, which is again encapsulated within a [Ni 18...
Article
Full-text available
Three novel ionic co-crystals (ICCs) built of lithium perchlorate and β-alanine (LiClO4·βAla, LiClO4·2βAla-I, LiClO4·2βAla-II) were obtained and structurally characterized. Crystals with a twofold excess of amino acid, LiClO4·2βAla-I, were found to undergo a solvent-mediated phase transition, recrystallizing as thermodynamically stable polymorph Li...
Article
Heterotopic tri-cationic receptor based on 4,10,16-triaza-18-crown-6 is capable of efficient and selective binding of zwitterionic form of 5-aminovaleric acid (5-AVA) in aqueous/methanol solution. The cooperative participation of both cation and anion binding domains of this receptor in 5-AVA complexation was established by 1H NMR experiments and D...
Article
The oxygen evolution reaction (OER) is a thermodynamically and kinetically demanding process, therefore it requires the use of catalysts enabling to meet technologically relevant conditions. Here, we realized efficient OER catalysts fabricated using relatively cheap precursors consisting of earth-abundant metal oxides, i.e. nickel, iron, and chromi...
Article
In bis‐corroles consisting of trans‐A2B‐corrole moieties and a diamide bridge, the hydrogen‐bond pattern is strongly affected by the type of solvent used in the crystallization process. When ethylenediamine is used as linker, incorporation of polar solvents into the crystalline lattice causes a roughly parallel orientation of corrole rings. At the...
Article
Four bis‐corroles linked via diamide bridges were synthesized via peptide‐type coupling of a trans‐A2B‐corrole‐acid with aliphatic and aromatic diamines. In the solid state, the hydrogen bond pattern in these bis‐corroles is strongly affected by the type of solvent used in the crystallization process. Although intramolecular hydrogen bonds play a d...
Article
A large range of nanoscale superparamagnetic materials has been under scrutiny from the point of view of their potential theranostic, multimodal applications. In this paper we have investigated the effect of replacing Fe³⁺ cations with Gd³⁺ and Tb³⁺ in the core of the superparamagnetic iron oxide nanoparticles in search for the optimum level of mag...
Cover Page
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The ELF contour plot mapped on the (a) z = 0 and (b) z = 1/2 for Y4Mg3Ni2 compound
Article
Full-text available
6-Acetyl-8-bromo-5-[2-(N,N-dimethylamino)ethoxy)-4,7-dimethylcoumarin (1) and 6-acetyl-8-bromo-5-[2-(N,N-diethylamino)ethoxy)-4,7-dimethylcoumarin (2) were synthesized using microwave conditions. Crystal of 1 was investigated using single-crystal X-ray diffraction at 296 K and 100 K. The crystal undergoes reversible order-disorder, temperature-driv...
Article
The synthesis, structural characterization, and chemical bonding peculiarities of new intermetallic compounds from Y–Mg–Ni ternary system are reported herein. The crystal structures of these compounds were determined by single-crystal and X-ray powder diffraction analysis. Three ternary compounds were studied: Y 2 Mg 11 Ni 2 [own structure type, mo...
Article
The exceptional magnetic properties of superparamagnetic iron oxide nanoparticles (SPIONs) make them promising materials for biomedical applications like hyperthermia, drug targeting and imaging. Easy preparation of SPIONs with the controllable, well-defined properties is a key factor of their practical application. In this work, we report a simple...
Article
Full-text available
Modification of ultrasmall gold nanoparticles (AuNPs) with the lipoic acid derivative of folic acid was found to enhance their accumulation in the cancer cell, as compared to AuNPs without addressing units. The application of lipoic acid enabled the control of the gold nanoparticle functionalities leading to enhanced solubility and allowing for att...
Article
We present Tb3+ substituted superparamagnetic iron oxide-based nanoparticles that can be promising for possible multimodal drug carrier and radiotherapy platform. These nanoparticles were obtained using a reverse micelle template method with controlled micelle size. The atomic ratio of Tb to Fe ions was found to be very close to that expected from...
Article
In this paper, we describe the facile synthesis and physicochemical characteristic of nitroxide-coated silver nanoparticles. The proposed procedure allows to obtain isolatable, devoid of Ag+ impurities, long-term stable, spherical nanoparticles with an average diameter ca. 7 nm, which exhibit high antibacterial activity towards both Gram-negative a...

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