Synthesis and characterization of chromium-isothiocyanate-4-methylpyridine complexes

被引：1

作者：

Young, Jennifer L. ^{[1
]}

Harris, Jerry D. ^{[1
]}

Benjamin, Joshua A. ^{[1
]}

Fitch, Jannah E. ^{[1
]}

Nogales, Daniel F. ^{[1
]}

Walker, Joanna R. ^{[1
]}

Frost, Brian J. ^{[2
]}

Thurber, Aaron ^{[3
]}

Punnoose, Alex ^{[3
]}

机构：

[1] NW Nazarene Univ, Dept Chem, Nampa, ID 83686 USA

[2] Univ Nevada, Dept Chem, Reno, NV 89557 USA

[3] Boise State Univ, Dept Phys, Boise, ID 83725 USA

来源：

INORGANICA CHIMICA ACTA | 2011年 / 377卷 / 01期

基金：

美国国家科学基金会;

关键词：

Chromium; Isothiocyanate; Methylpyridine; Crystal structure; Thermal analysis; CHARGE-TRANSFER SALTS; THERMAL-DECOMPOSITION; CR-III; THERMOGRAVIMETRIC DATA; KINETIC-ANALYSIS; METAL POWDERS; TM-TTF; FE-III; ANIONS; TETRAMETHYLTETRATHIAFULVALENE;

D O I：

10.1016/j.ica.2011.07.023

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis and single crystal X-ray structure of trans-[HNC6H7][Cr(NCS)(4)(NC6H7)(2)] (1) and mer[Cr(NCS)(3)(NC6H7)(3)] (2) are reported. Compound 1 was synthesized by refluxing chromium powder and thiourea in 4-methylpyridine. The isothiocyanate ligand is believed to be generated from the isomerization of thiourea to ammonium thiocyanate during synthesis. Compound 2 was prepared from CrCl3 and KSCN in 4-methylpyridine. The reaction conditions for both compounds yielded a mixture of [Cr(NCS)(x)(NC6H7)(6) (x)](3) (x) isomers (x = 0-6), which were analyzed by HPLC. The thermal properties of trans-[HNC6H7][Cr(NCS)(4)(NC6H7)(2)] were analyzed by thermogravimetric analysis/differential scanning calorimetry-mass spectroscopy (TGA/DSC-MS), and the compound was found to oxidize to CrO2 in three major weight loss steps when heated to 1000 degrees C in dry air. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：14 / 19

页数：6

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