Co-ordination chemistry of dimethylgold(III). Synthesis, spectroscopic, and structural studies of complexes with neutral aromatic nitrogen-donor ligands
作者:Allan J. Canty、Nigel J. Minchin、Peter C. Healy、Allan H. White
DOI:10.1039/dt9820001795
日期:——
cis-square-planar co-ordination for gold(III), AuC2N2, with Au–C 2.023(7)–2.041(12)Å and Au–N 2.127(8)–2.142(8)Å. In complexes of the potential tridentate ligands one pyridyl group is not co-ordinated in the tpm complex, and one pyrazolyl group is involved in a weak axial Au ⋯ N interaction [3.139(7)Å] in the tpzm complex. Comparison of the 1H n.m.r. spectra of complexes of the potentially tridentate ligands (tpzm
硝酸二甲基金(III)与中性配体反应形成配合物[AuMe 2(tpm)] NO 3 ·2H 2 O(tpm =三-2-吡啶甲烷)和[AuMe 2 L] NO 3 [L = tri-2-吡啶甲醇(tpmo),二-2-吡啶基甲烷(dpm),αα-二-2-吡啶基甲苯(dpt),二-1-吡唑基甲烷(dpzm)和三-1-吡唑基甲烷(tpzm)]。已经通过在295 K下进行单晶X射线衍射确定了tpzm,tpm和dpt的配合物的晶体结构,并通过最小二乘法将3,043,1,616和3的R分别设为R = 0.033、0.029和0.042。分别有2 529个独立的“观察”反射。在这些结构中,[AuMe 2 L]+阳离子对于金( III),AuC 2 N 2,Au–C 2.023(7)–2.041(12)Å和Au–N 2.127(8)–2.142(8)本质上具有顺式-方形平面配位作用一种。在潜在的三齿配体的配