Dicopper(<scp>II</scp>) complexes of novel polyfunctional pyridazines: crystal structure and magnetic properties of bis[µ-pyridazine-3,6-dicarbaldehyde dioximato(1–)-κN<sup>1</sup>,N′:N<sup>2</sup>,N″]-bis[aqua(perchlorato-κO)copper(<scp>II</scp>)]
作者:Francis Abraham、Michel Lagrenee、Stéphane Sueur、Bouchaïb Mernari、Claude Bremard
DOI:10.1039/dt9910001443
日期:——
= H, H2L1; Ph, H2L2) oxime side chains were synthesised. The related copper(II) dinuclear complexes [Cu2(HL1)2(ClO4)2(H2O)2]1 and [Cu2(HL2)2(ClO4)2(MeOH)n]2 were obtained subsequently. The crystal structure of 1 was determined: space group P21/n, a= 12.031(6), b= 9.517(4), c= 9.973(5)Å, β= 100.16(4)° and Z= 2. The copper(II) ions of the binuclear unit are bridged by the two diazine fragments of the
合成了具有3,6-CR NOH(R = H,H 2 L 1 ; Ph,H 2 L 2)肟侧链的两个新型哒嗪配体。相关的铜(II)双核配合物[Cu 2(HL 1)2(ClO 4)2(H 2 O)2 ] 1和[Cu 2(HL 2)2(ClO 4)2(MeOH)n ] 2为随后获得。确定1的晶体结构:空间群P 2 1 / Ñ,一个= 12.031(6),b = 9.517(4),C ^ = 9.973(5),β= 100.16(4)°和Ž = 2铜(II)的双核单元的离子通过两个基本上平面的四齿配体的两个二嗪片段与肟氮原子桥接,完成了赤道配位。两个内部复合物氢桥连接末端肟基部分,以形成成核的大环复合物。在络合物1和2中,铜(II)处于经典的4 + 2环境中。这些化合物的磁性能在每种情况下均显示自旋单基态。单线态-三重态能隙被认为是-536(2)1和-545(4)厘米-1为2。关于大环配合物的