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Jan Patrick Dela Cruz Calupitan

Jan Patrick Dela Cruz Calupitan
CNRS UMR 8531 PPSM ENS-Paris Saclay

About

21
Publications
1,883
Reads
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150
Citations
Introduction
Post-doctoral researcher at Laboratoire de Photophysique et Photochimie Supramoléculaires et Macromoléculaires (Laboratory of Supramolecular and Macromolecular Photophysics and Photochemistry (PPSM UMR CNRS 8531) based in École Normale Supérieure-Paris Saclay
Additional affiliations
June 2013 - March 2015
Ateneo de Manila University
Position
  • Instructor
May 2013 - March 2015
Ateneo de Manila University
Position
  • Research Assistant

Publications

Publications (21)
Article
Full-text available
Nitrogen heteroatom doping into a triangulene molecule allows tuning its magnetic state. However, the synthesis of the nitrogen-doped triangulene (aza-triangulene) has been challenging. Herein, we report the successful synthesis of aza-triangulene on the Au(111) and Ag(111) surfaces, along with their characterizations by scanning tunneling microsco...
Article
Among the multiple classes of mechanofluorochromic (MFC) compounds reported in recent years, simple donor–acceptor molecules involving oligooxyethylene N‐substituted diphenylamine connected to a dicyanovinyl group by a thienyl spacer constitute a specific class of mechano‐stimulable smart materials with a unique combination of properties including...
Preprint
Full-text available
If neutrinos are their own antiparticles, the otherwise-forbidden nuclear reaction known as neutrinoless double beta decay ($\beta\beta 0\nu$) can occur, with a characteristic lifetime which is expected to be very long, making the suppression of backgrounds a daunting task. It has been shown that detecting (``tagging'') the Ba$^{+2}$ dication produ...
Preprint
Nitrogen heteroatom doping into a triangulene molecule allows tuning its magnetic state. However, the synthesis of the nitrogen-doped triangulene (aza-triangulene) has been challenging. Herein, we report the successful synthesis of aza-triangulene on the Au(111) and Ag(111) surfaces, along with their characterizations by scanning tunneling microsco...
Article
Mechanoresponsive luminescence (MRL) active materials promise smart devices for sensing, optoelectronics, and security. Herein is the first report on the MRL‐activity of two Re(I) complexes, opening up new opportunities for applications in this field. Both complexes exhibit marked solid‐state luminescence enhancement (SLE) effect. Pristine microcry...
Article
Full-text available
A series of simple donor–acceptor molecules consisting of an oligo‐oxyethylene (OOE) N‐substituted diphenylamine connected to a dicyanovinyl (DCV) acceptor group by a thienyl π‐conjugating spacer are synthesized. Amorphous deep‐red freshly cast thin films rapidly evolve towards an almost colorless pale beige poly‐crystalline stable material from wh...
Article
We here report a systematic study of structural and conformational variations in a series of terarylene molecules designed for use as photohydride generators. This family of compounds have been shown to facilitate self-contained hydride release, without the need for external sources of hydrogen in a manner analogous to previously reported photoacid...
Article
Full-text available
Five photochromic terarylenes which show reversible photocyclisation and cycloreversion with relatively high quantum yields are presented. Some of these have been observed to undergo a highly efficient cycloreversion cascade process from their coloured, closed forms to their uncoloured open forms that leads to cycloreversion quantum yields signific...
Article
Full-text available
Synthetic molecular machines designed to operate on materials surfaces can convert energy into motion and they may be useful to incorporate into solid state devices. Here, we develop and characterize a multi-component molecular propeller that enables unidirectional rotations on a material surface when energized. Our propeller is composed of a rotat...
Article
In order to improve the remarkable performance of a mononuclear tricarbonyl rhenium(I) complex (ReL1) that exhibits rare aggregation-induced phosphorescence enhancement (AIPE) behaviour, two new complexes (ReL3 and ReL4) were prepared and investigated from a theoretical, crystallographic, spectroscopic and electrochemical viewpoint. All complexes i...
Article
The efficient switching that can occur between two stable isomers of diarylethenes makes them particularly promising targets for opto‐ and molecular electronics. To examine these classes of molecules for electronics applications, they have been subjected to a series of scanning tunneling microscopy (STM) experiments which are the focus of this Revi...
Article
Terarylene frameworks containing benzothiazole as a photo-precursor of hydride donors are presented. We here report on two new scaffolds along with their photoreactivity in solution. Through use of selected external oxidants the photogeneration of hydride donors is monitored using UV/Visible, NMR and TEM methods. As a proof of concept, photogenerat...
Article
Photoswitching materials are building blocks of next generation optoelectronic devices which may require molecule deposition on a solid substrate. However, molecule properties change upon adsorption due to surface-molecule interactions and symmetry considerations. Scanning tunneling microscopy (STM) and density functional theory (DFT) offer techniq...
Thesis
Photoswitching diarylethenes, and their terarylene derivatives, are promising for the next generation optoelectronic devices because of their excellent photochemical properties. To make them viable for miniaturized electronic devices, it is necessary to study this class of molecules at the single molecular level by scanning tunneling microscopy und...
Article
Bottom-up approaches allow for molecular-level control of engineering new nanostructures. For the next generation molecular circuits, machines, and phase-change materials, supramolecular structure formation and interactions must be investigated on a two-dimensional solid substrate. Scanning tunneling microscopy (STM) provides not only a method to a...
Article
In the field of extreme miniaturization of electronic devices, it is necessary to study candidate molecules at the single molecular level by scanning tunneling microscopy (STM). This necessitates molecules to harbor specific functionalization to control molecule-surface interactions to avoid molecular diffusion on the surface and molecule-molecule...
Article
Full-text available
We present results of electrowetting experiments employing droplets formed from aqueous suspensions of Au nanoparticles. A planar electrowetting system, consisting of a Pt wire electrode and a bottom Cu electrode with an insulating silicone layer, is used to observe changes in droplet contact angle when an external electric field is applied. The eq...
Article
In this manuscript, we present a novel concept for “smarter” photo-labile organic compounds combining not one but two caged functions. As proof of principle, this diarylethene-based compound possesses two inhibited chemical groups (OMe and OAc) and its efficient release in different solvents is reported. In low to medium polar media, both MeOH and...
Article
We report herein a dramatic improvement in the kinetics and efficiency of an oxidative cycloreversion reaction of photochromic dithiazolylthiazoles. The cycloreversion reaction of a colored isomer of dithiazolylthiazole proceeds not only by photo-irradiation, but also through chemical oxidation with a net efficiency far exceeding 100 % owing to a c...
Article
We report herein ad ramatic improvement in the kineticsand efficiency of an oxidative cycloreversion reaction of photochromic dithiazolylthiazoles. The cycloreversion reaction of ac olored isomer of dithiazolylthiazole proceeds not only by photo-irradiation, but also throughc hemical oxidation with an et efficiency far exceeding 100 %o wing to ac h...

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