Přenos tripletové energie u bichromoforů aminokyselin, dipeptidů a diesterů karboxylových kyselin

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F05%3APU53250" target="_blank" >RIV/00216305:26310/05:PU53250 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Triplet Energy Transfer in Bichromophoric Amino Acids, Dipeptides and Carboxylic Acid Diesters

Popis výsledku v původním jazyce

The Intramolecular Triplet-triplet Energy Transfer (ITET) in various bichromophoric amino acids (glycine, valine, phenylalanine, and sarcosine), dipeptides (diglycine, diphenylalanine), and a simple diester, with the benzoyl and naphthyl terminal groupsserving as donor and acceptor, respectively (Fig. 1), were studied by the steady-state photokinetic measurements. The efficiency of a through-space exothermic ITET was affected by the interchromophore distance (8 or 11 atoms), the nature of the connectinng chain as well as the side chains. Rigidity of the peptide bond in short bichromophoric compounds causes that the ITET processes are controlled by ground-state conformational distribution. Whereas a less rigid diester would allow that certain unfavorable conformations may coil to favorable ones within an excited-state lifetime (< 10-8 s). Flexibility of the bichromophore with ester moiety and the steric effect of the side hydrocarbon groups in valine- and sarcosine-based molecules lead

Název v anglickém jazyce

Triplet Energy Transfer in Bichromophoric Amino Acids, Dipeptides and Carboxylic Acid Diesters

Popis výsledku anglicky

The Intramolecular Triplet-triplet Energy Transfer (ITET) in various bichromophoric amino acids (glycine, valine, phenylalanine, and sarcosine), dipeptides (diglycine, diphenylalanine), and a simple diester, with the benzoyl and naphthyl terminal groupsserving as donor and acceptor, respectively (Fig. 1), were studied by the steady-state photokinetic measurements. The efficiency of a through-space exothermic ITET was affected by the interchromophore distance (8 or 11 atoms), the nature of the connectinng chain as well as the side chains. Rigidity of the peptide bond in short bichromophoric compounds causes that the ITET processes are controlled by ground-state conformational distribution. Whereas a less rigid diester would allow that certain unfavorable conformations may coil to favorable ones within an excited-state lifetime (< 10-8 s). Flexibility of the bichromophore with ester moiety and the steric effect of the side hydrocarbon groups in valine- and sarcosine-based molecules lead

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CC - Organická chemie

OECD FORD obor

—

Projekt

—

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2005

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemické listy (IF = 0.348)

ISSN

0009-2770

e-ISSN

—

Svazek periodika

99

Číslo periodika v rámci svazku

S

Stát vydavatele periodika

CZ - Česká republika

Počet stran výsledku

2

Strana od-do

513-514

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—