the 2-pyridone tautomer, the metal being in the 1-position. An X-ray crystal structure determination carried out on Ph3PAu(6-methylpyridonato-N)· H2O· 0.5C6H6, the first structural analysis on a derivative in which the Q ligand is monodentate, reveals that the pyridonato-N ligand is derived from the keto-tautomer, the CO distance being 1.23(2) Å, and that the coordination around the gold atom is approximately
(R 3 P)AuCl与一些1-未取代的2-
吡啶酮和碱在均相或非均相介质中的反应得到了(R 3 P)AuQ化合物(QH为2-
吡啶酮,
3-硝基,5-
氯或6-
甲基吡啶酮; R为t-Bu,环己基,苯基或1-
萘基)。红外和NMR的综合证据表明,这些化合物衍生自2-
吡啶酮互变异构体,
金属位于1位。通过对Q
配体为单齿衍
生物的首次结构分析,在Ph 3 PAu(6-
甲基吡啶酮-N)·H 2 O·0.5C 6 H 6上进行的X射线晶体结构测定表明,
吡啶酮- ñ
配体衍生自酮互变异构体,C,O距离为1.23(2)Å,
金原子周围的配位近似为线性(P(AuN173.4(3)°)。具有AuN2.077(9),AuP2.236(3)Å且无
金属-
金属相互作用。