Mono- and binuclear Pd(II) complexes with 2-(5,6-dimethyl-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)-N-phenylhydrazinecarbothioamide: Synthesis, crystal structure and spectroscopic characterization
作者:Hlib Repich、Svitlana Orysyk、Volodymyr Bon、Pavlo Savytskyi、Vasyl Pekhnyo
DOI:10.1016/j.molstruc.2015.07.059
日期:2015.12
the ligand molecules are coordinated as monoanion in thiol tautomeric form with transferring of thiosemicarbazide proton to nitrogen atom of thienopyrimidine moiety. In the case of complex 2, additional deprotonation of thienopyrimidine nitrogen atom leads to coordination of the ligand as dianion. The crystal structure of 2 also contains one molecule of triphenylphosphine sulfide formed by side reaction
摘要 通过反应合成了两种新型 Pd2+ 单核 [Pd(HL)PPh3Cl]·nDMF (1) (n = 1, 2) 和双核 [Pd2(L)2(PPh3)2]·SPPh3·3DMF (2) 配合物[Pd(PPh3)2Cl2] 与 2-(5,6-二甲基-4-oxo-3,4-dihydrothieno[2,3-d]pyrimidin-2-yl)-N-phenylhydrazinecarbothioamide 的单晶表征X射线衍射。配合物 1 还通过 1H NMR、IR 和 UV-Vis 光谱进行了表征。对于配合物 1,已发现两种结晶多晶型变体:单斜晶 (1a) 和更稳定的三斜晶 (1b) 一种,其晶体结构因晶体堆积和晶格溶剂分子数量不同而不同。在两种多晶型物中,配体分子以硫醇互变异构形式作为单阴离子配位,氨基硫脲质子转移到噻吩并嘧啶部分的氮原子。在配合物 2 的情况下,噻吩并嘧啶氮原子的额外去质