New polymorphs of hydrotris(1,2,4-triazolyl) borate complexes with M2+ cations (M = Fe, Co, Ni, Zn)

被引：1
|
作者：
Campbell, Caroline J. [1 ]
Muetterties, Austin T. [1 ]
Chan, Benny C. [2 ]
Reisner, Barbara A. [1 ]
机构：
[1] James Madison Univ, Dept Chem & Biochem, 901 Carrier Dr,MSC 4501, Harrisonburg, VA 22807 USA
[2] Coll New Jersey, Dept Chem, 2000 Pennington Rd, Ewing, NJ 08628 USA
来源：
INORGANICA CHIMICA ACTA | 2018年 / 473卷
关键词：
Hydrotris(1,2,4-triazolyl)borate complexes; Coordination complexes; Crystal structure; Variable temperature X-ray diffraction; Spin-crossover; EFFECTIVE IONIC-RADII; COORDINATION POLYMERS; TRIS(TRIAZOLYL)BORATE LIGANDS; SPIN-CROSSOVER; CENTER-DOT; METAL; IMIDAZOLATE; FRAMEWORKS; STABILITY; CHEMISTRY;
D O I：
10.1016/j.ica.2018.01.001
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The syntheses and X-ray structural characterization of four new polymorphs of coordination complexes containing the hydrotris(triazolyl) borate anion, M[BH(trz)(3)](2) (trz = 1,2,4-trizolate; M = Fe2+, Co2+, Ni2+, Zn2+) are presented. The complexes were characterized by single crystal and powder X-ray diffraction, elemental analysis, and IR spectroscopy. The metal ion is chelated by the endodentate nitrogen atoms of two [BH(trz)(3)] ligands and crystallizes in the absence of solvent. The materials are stable in solution and in air. PXRD data indicate that this is the decomposition product of the previously synthesized M[BH(trz)(3)](2)center dot 6H(2)O center dot Fe[BH(trz)(3)](2) is a thermochromic spin- crossover compound with T-sc = 333 K. (C) 2018 Elsevier B.V. All rights reserved.
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收藏
页码：275 / 281
页数：7
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