Standard Enthalpies of Formation for Solid Complexes of Chromium Chloride with L-α-Amino Acids

• 来源期刊: 中国化学（英文版）
• 年，卷（期）: 2002,（10）
• 页码范围: 1000-1006
• 页数: 7页
• 语种: 英文

摘要

The solid complexes of Cr(AA)2Cl3@ nH2O of CrCl3 with L-α-amino acids (AA= Val, Leu, Thr, Met, Arg, Phe, Try and His) have been prepared in 95% EtOH medium, and characterized structurally by elemental analysis, chemical analysis, IR spectra and TG-DTG. The constant-volume combustion energies of the complexes have been determined by RBC-H type rotating-bomb calorimeter. The standard enthalpies of formation of the complexes have been calculated as well, which are (-2543.16 ± 3.71) (Val), ( -2561.32 ± 4.06) (Leu),(-2284.02 ± 2.95) (Thr), ( -1418.77 ± 4.60) (Met),(-3218.91 ± 4.67) (Arg), ( -2643.90 ± 5.02) (Phe),(-1707.18±3.23) (Try) and ( -2838.05 ±3.45) (His) kJ/mol, respectively.