Using fast scanning calorimetry to study solid-state cyclization of dipeptide L-leucyl-L-leucine

被引：13

作者：

Safiullina, Aisylu S. ^{[1
]}

Buzyurov, Aleksey, V ^{[1
]}

Ziganshina, Sufia A. ^{[2
]}

Gerasimov, Alexander, V ^{[1
]}

Schick, Christoph ^{[1
]}

Gorbatchuk, Valery V. ^{[1
]}

Ziganshin, Marat A. ^{[1
]}

机构：

[1] Kazan Fed Univ, AM Butlerov Inst Chem, Kremlevskaya Ul 18, Kazan 420008, Russia

[2] Russian Acad Sci, Zavoisky Phys Tech Inst, FRC Kazan Sci Ctr, Sibirsky Tract 10-7, Kazan 420029, Russia

来源：

THERMOCHIMICA ACTA | 2020年 / 692卷

关键词：

Dipeptide; Solid-state synthesis; 2,5-Diketopiperazines; Fast scanning calorimetry; Non-isothermal kinetics; CYCLIC DIPEPTIDE; THERMAL-ANALYSIS; THERMOCHEMICAL PROPERTIES; MELTING PROPERTIES; PEPTIDES; FUSION; HEAT; 2,5-DIKETOPIPERAZINES; DIKETOPIPERAZINES; TEMPERATURE;

D O I：

10.1016/j.tca.2020.178748

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The possibility of using fast scanning calorimetry (FSC) to study the kinetics of the solid-state cyclization of dipeptide was demonstrated in the present work for the first time. The activation energy and Arrhenius constant of the cyclization of (L) -leucyl-(L)-leucine (Leu-Leu) were estimated. FSC data obtained at heating rates from 18,000 to 54,000 K min(-1) were evaluated by non-isothermal kinetics. The dependence of the specific heat capacity c(p) on temperature was determined for linear and cyclic Leu-Leu dipeptides using differential scanning calorimetry (DSC) and FSC. The application of FSC allows studies of solid-state reactions for expensive substances and compounds synthesized in very small amounts.

引用

页数：8

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