含烷氧基、酰胺基和苯氧基供体的五阴离子五齿配体双核锰（III）配合物的结构与性质

Structure and properties of dinuclear manganese(III) complexes with pentaanionic pentadentate ligands including alkoxo, amido, and phenoxo donors.

作者信息

Stoicescu Liliana, Jeanson Aurélie, Duhayon Carine, Tesouro-Vallina Ana, Boudalis Athanassios K, Costes Jean-Pierre, Tuchagues Jean-Pierre

机构信息

Laboratoire de Chimie de Coordination du CNRS, UPR 8241, 205 route de Narbonne, 31077 Toulouse Cedex 04, France.

出版信息

Inorg Chem. 2007 Aug 20;46(17):6902-10. doi: 10.1021/ic062398r. Epub 2007 Jul 25.

DOI:10.1021/ic062398r

PMID:17649972

Abstract

Doubly bridged mu-alkoxo-mu-X (X = pyrazolato or acetato) dinuclear MnIII complexes of 2-hydroxy-N-{2-hydroxy-3-[(2-hydroxybenzoyl)amino]propyl}benzamide) (H5L1) and 2-hydroxy-N-{2-hydroxy-4-[(2-hydroxybenzoyl)amino]butyl}benzamide (H5L2), [Mn2(L)(pz)(MeOH)4].xMeOH (1, L = L1, x = 0.5; 2, L = L2, x = 0; Hpz = pyrazole) and [Mn2(L1)(OAc)(MeOH)4] (3), have been prepared, and their structure and magnetic properties have been studied. The X-ray diffraction analysis of 1 (C24.5H34Mn2N4O9.5, triclinic, P, a = 12.2050(7) A, b = 12.7360(8) A, c = 19.2780(10) A, alpha = 99.735(5) degrees , beta = 96.003(4) degrees , gamma = 101.221(5) degrees , V = 2867.6(3) A3, Z = 4), 2 (C25H34Mn2N4O9, triclinic, P, a = 9.4560(5) A, b = 11.0112(5) A, c = 13.8831(6) A, alpha = 90.821(4) degrees , beta = 92.597(4) degrees , gamma = 93.403(4) degrees , V = 1441.29(12) A3, Z = 2), and 3 (C23H32Mn2N2O11, triclinic, P, a = 10.511(5) A, b = 11.713(5) A, c = 13.135(5) A, alpha = 64.401(5) degrees , beta = 74.000(5) degrees , gamma = 66.774(5) degrees , V = 1329.3(10) A3, Z = 2) revealed that all complexes consist of dinuclear units which are further extended into 1D (1 and 3) and 2D (2) supramolecular networks via hydrogen-bonding interactions. Magnetic susceptibility data evidence antiferromagnetic interactions for all three complexes: J = -3.6 cm-1, D approximately 0 cm-1, g = 1.93 (1); J = -2.7 cm-1, D = 0.8 cm-1, g = 1.93 (2); J = -4.9 cm-1, D = 3.8 cm-1, g = 1.95 (3).

摘要

已制备出2-羟基-N-{2-羟基-3-[(2-羟基苯甲酰基)氨基]丙基}苯甲酰胺（H5L1）和2-羟基-N-{2-羟基-4-[(2-羟基苯甲酰基)氨基]丁基}苯甲酰胺（H5L2）的双桥连μ-烷氧基-μ-X（X = 吡唑基或乙酸根）双核MnIII配合物[Mn2(L)(pz)(MeOH)4].xMeOH（1，L = L1，x = 0.5；2，L = L2，x = 0；Hpz = 吡唑）和[Mn2(L1)(OAc)(MeOH)4]（3），并对其结构和磁性进行了研究。对1（C24.5H34Mn2N4O9.5，三斜晶系，P，a = 12.2050(7) Å，b = 12.7360(8) Å，c = 19.2780(10) Å，α = 99.735(5)°，β = 96.003(4)°，γ = 101.221(5)°，V = 2867.6(3) Å3，Z = 4）、2（C25H34Mn2N4O9，三斜晶系，P，a = 9.4560(5) Å，b = 11.0112(5) Å，c = 13.8831(6) Å，α = 90.821(4)°，β = 92.597(4)°，γ = 93.403(4)°，V = 1441.29(12) Å3，Z = 2）和3（C23H32Mn2N2O11，三斜晶系，P，a = 10.511(5) Å，b = 11.713(5) Å，c = 13.135(5) Å，α = 64.401(5)°，β = 74.000(5)°，γ = 66.774(5)°，V = 1329.3(10) Å3，Z = 2）的X射线衍射分析表明，所有配合物均由双核单元组成，这些双核单元通过氢键相互作用进一步扩展为一维（1和3）和二维（2）超分子网络。磁化率数据证明这三种配合物均存在反铁磁相互作用：J = -3.6 cm-1，D约为0 cm-1，g = 1.93（1）；J = -2.7 cm-1，D = 0.8 cm-1，g = 1.93（2）；J = -4.9 cm-1，D = 3.8 cm-1，g = 1.95（3）。