Search Results - "Lapinski, Leszek"

Near-IR laser generation of a high-energy conformer of L-alanine and the mechanism of its decay in a low-temperature nitrogen matrix by Nunes, Cláudio M, Lapinski, Leszek, Fausto, Rui, Reva, Igor

“…Monomers of L-alanine (ALA) were isolated in cryogenic nitrogen matrices at 14 K. Two conformers were identified for the compound trapped from the gas-phase…”
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Near-IR-Induced, UV-Induced, and Spontaneous Isomerizations in 5‑Methylcytosine and 5‑Fluorocytosine by Lapinski, Leszek, Reva, Igor, Rostkowska, Hanna, Fausto, Rui, Nowak, Maciej J

“…Monomeric 5-methylcytosine (5mCyt) and 5-fluorocytosine (5FCyt) were studied using the matrix-isolation method. In 5mCyt and 5FCyt, the most stable form,…”
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UV-Induced Amino → Imino Hydrogen-Atom Transfer in 1‑Methylcytosine by Reva, Igor, Nowak, Maciej J, Lapinski, Leszek, Fausto, Rui

“…Monomers of 1-methylcytosine, isolated in low-temperature argon matrixes, were excited with narrowband tunable UV light. Irradiation at λ = 314 nm resulted in…”
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Systematic Effect of Benzo-Annelation on Oxo−Hydroxy Tautomerism of Heterocyclic Compounds. Experimental Matrix-Isolation and Theoretical Study by Gerega, Anna, Lapinski, Leszek, Nowak, Maciej J, Furmanchuk, Al'ona, Leszczynski, Jerzy

“…Oxo−hydroxy tautomerism and phototautomerism of 2-quinolinone, 1-isoquinolinone, 3-hydroxyisoquinoline, 2-quinoxalinone, and 4-quinazolinone were studied using…”
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A Computational Study on the Mechanism of Intramolecular Oxo−Hydroxy Phototautomerism Driven by Repulsive πσ State by Chmura, Bartosz, Rode, Michal F, Sobolewski, Andrzej L, Lapinski, Leszek, Nowak, Maciej J

“…Potential energy (PE) surfaces of the lowest excited states of the 4(3H)-pyrimidinone/4-hydroxypyrimidine system were investigated with the aid of the CC2 and…”
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Infrared spectra of methyl isocyanate isolated in Ar, Xe and N2 matrices by Reva, Igor, Lapinski, Leszek, Fausto, Rui

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Infrared spectra and ultraviolet-tunable laser induced photochemistry of matrix-isolated phenol and phenol-d5 by Giuliano, Barbara Michela, Reva, Igor, Lapinski, Leszek, Fausto, Rui

“…Monomers of phenol and its ring-perdeuterated isotopologue phenol-d(5) were isolated in argon matrices at 15 K. The infrared (IR) spectra of these species were…”
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Proton-Transfer Processes in Thiourea:  UV Induced Thione → Thiol Reaction and Ground State Thiol → Thione Tunneling by Rostkowska, Hanna, Lapinski, Leszek, Khvorostov, Artem, Nowak, Maciej J

“…Thiourea monomers isolated in a low-temperature argon matrix adopt exclusively the thione tautomeric form. Upon UV (λ > 300 nm) irradiation a photoreaction…”
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Thioperoxy Derivative Generated by UV-Induced Transformation of N-Hydroxypyridine-2(1H)-thione Isolated in Low-Temperature Matrixes by Lapinski, Leszek, Gerega, Anna, Sobolewski, Andrzej L, Nowak, Maciej J

“…Photochemical transformations of N-hydroxypyridine-2(1H)-thione and its deuterated isotopologue were studied using the matrix-isolation technique…”
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Stability of monomeric indigo in the electronic ground state: An experimental matrix isolation infrared and theoretical study by Reva, Igor, Lapinski, Leszek, Nowak, Maciej J.

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Hydrogen-atom tunneling in small thioamides: N-methylthiourea, thiobenzamide and 2-cyanothioacetamide by Rostkowska, Hanna, Lapinski, Leszek, Nowak, Maciej J.

“…[Display omitted] •Thiol tautomers were photogenerated from the thione forms of N-methylthiourea, thiobenzamide and 2-cyanothioacetamide.•The thiol tautomers…”
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Distinct class of photoinduced hydrogen-atom-transfer processes: phototautomerizations in molecules with no intramolecular hydrogen bond in the structure by Lapinski, Leszek, Rostkowska, Hanna, Nowak, Maciej J.

“…Photoinduced hydrogen-atom-transfer processes presented in this review commonly occur in heterocyclic oxo and thione compounds isolated in low-temperature…”
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Photoinduced Long-Distance Hydrogen-Atom Transfer in Molecules with a 7‑Hydroxyquinoline Frame and a Carbaldehyde or Aldoxime Group as the Intramolecular Hydrogen Transporting Crane by Lapinski, Leszek, Rostkowska, Hanna, Nowacki, Jacek, Nowak, Maciej J.

“…The photochemical properties of monomeric 7-hydroxyquinoline substituted at position 8 with carbaldehyde or aldoxime groups were studied for the molecules…”
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Photochemical Generation of Benzoazetinone by UV Excitation of Matrix-Isolated Precursors: Isatin or Isatoic Anhydride by Rostkowska, Hanna, Lapinski, Leszek, Nowak, Maciej J

“…Benzoazetinone was photochemically generated by UV irradiation of isatin isolated in low-temperature Ar matrixes. Upon UV (λ = 278 nm) excitation of isatin,…”
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Photochemical transformations of 4,6-dihydroxypyrimidine and 2-methyl-4,6-dihydroxypyrimidine isolated in low-temperature Ar, Ne and H2 matrices by Rostkowska, Hanna, Luchowska, Anna, Lapinski, Leszek, Nowak, Maciej J.

“…[Display omitted] •Dihydroxy and oxo-hydroxy tautomeric forms of 4,6-dihydroxypyrimidine and its 2-methylated analog are the most stable structures in the gas…”
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UV-Induced Hydrogen-Atom-Transfer Processes in 3‑Thio-1,2,4-triazole Isolated in Ar and H2 Low-Temperature Matrixes by Rostkowska, Hanna, Lapinski, Leszek, Nowak, Maciej J

“…The UV-induced thione → thiol phototautomeric reaction has been studied for monomeric 3-thio-1,2,4-triazole (3-ST) isolated in low-temperature Ar and n-H2…”
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Effect of a Solid-Hydrogen Environment on UV-Induced Hydrogen-Atom Transfer in Matrix-Isolated Heterocyclic Thione Compounds by Rostkowska, Hanna, Luchowska, Anna, Lapinski, Leszek, Nowak, Maciej J

“…To shed more light on the mechanisms of UV-induced hydrogen-atom-transfer processes in heterocyclic molecules, phototautomeric thione → thiol reactions were…”
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Phototransformations of 2,3-Diamino-2-Butenedinitrile (DAMN) Monomers Isolated in Low-Temperature Argon Matrix by Reva, Igor, Rostkowska, Hanna, Lapinski, Leszek

“…UV-induced transformations were studied for monomers of 2,3-diamino-2-butenedinitrile (DAMN) isolated in argon matrices. Photoinduced hydrogen-atom transfer…”
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Near-Infrared Laser-Induced Generation of Three Rare Conformers of Glycolic Acid by Halasa, Anna, Lapinski, Leszek, Reva, Igor, Rostkowska, Hanna, Fausto, Rui, Nowak, Maciej J

“…Structural transformations were induced in conformers of glycolic acid by selective excitation with monochromatic tunable near-infrared laser light. For the…”
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Three Conformers of 2‑Furoic Acid: Structure Changes Induced with Near-IR Laser Light by Halasa, Anna, Lapinski, Leszek, Reva, Igor, Rostkowska, Hanna, Fausto, Rui, Nowak, Maciej J

“…Conformers of 2-furoic acid were studied using the matrix-isolation technique combined with narrow-band near-IR excitations with tunable laser light. Two…”
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