Mono- and dinuclear platinum(II) complexes via single and double cycloplatinations of N′-(arylidene)benzohydrazides

被引:6
作者
Rao, A. R. Balavardhana [1 ]
Pal, Samudranil [1 ]
机构
[1] Univ Hyderabad, Sch Chem, Hyderabad 500046, Andhra Pradesh, India
关键词
Cycloplatination; Benzoyl hydrazone; Mononuclear; Dinuclear; Crystal structures; REGIOSELECTIVE CYCLOMETALATION; PALLADIUM(II); IRIDIUM(III); THIOSEMICARBAZONES; CRYSTAL; LIGANDS; METALS;
D O I
10.1016/j.jorganchem.2015.08.003
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Monocycloplatinated complexes [Pt(HLn)(PPh3)] were synthesized using [Pt(dmso)(2)Cl-2], N'-(arylidene) benzohydrazides (H3Ln, arylidene = 1-naphthylidene or 9-phenanthrylidene), NaOAc center dot 3H(2)O, and PPh3 in 1:1:1:2 mol ratio. The same reagents in 2:1:1:2 mol ratio provided the dicycloplatinated complexes [Pt-2(mu-L-n)(PPh3)(2)Cl]. All the complexes have been characterized by elemental analysis, X-ray crystallographic and spectroscopic measurements. X-ray structures reveal that (HLn)(2-) acts as pincer-like CNO-donor in [Pt(HLn)(PPh3)], while the dinucleating (L-n)(3-) behaves as pentadentate ligand and acts is CNO-donor to one metal centre and CN-donor to the second metal centre in [Pt-2(mu-L-n)(PPh3)(2)Cl]. The spectroscopic (IR, UV-Vis and NMR) features of both types of complexes are in agreement with their corresponding identities. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:96 / 100
页数:5
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