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- Title
Supramolecular 3-/4-Mercaptobenzoic Acid Complexes of Palladium(II) and Platinum(II) Stabilized by Hydrogen Bonding.
- Authors
Vivekananda, Kotipalli V.; Dey, Sandip; Wadawale, Amey; Bhuvanesh, Nattamai; Jain, Vimal K.
- Abstract
The reaction of cis-[Pt(PEt3)2(OTf)2] with 4-mercaptobenzoic acid (4-H2mba) in the presence of sodium methoxide yielded trans-[Pt(SC6H4COOH-4)2(PEt3)2] ( 1), the simple addition of 3-/4-mercaptobenzoic acid to cis-[Pt(PEt3)2(OTf)2] and cis-[M(PP)2(OTf)2] gave the self-assembled complexes cis-[Pt(μ-SC6H4COOH- n)(PEt3)2]2(OTf)2 [ n = 3 ( 2), 4 ( 3)] and [M(μ-SC6H4COOH- n)(PP)]2(OTf)2 [M/ n/PP = Pd/3/dppe ( 4), Pd/4/dppe ( 5), Pt/4/dppp ( 6); dppe = 1,2-bis(diphenylphosphino)ethane, dppp = 1,2-bis(diphenylphosphino)propane], respectively, and the reactions of cis-[PtCl2(PR3)2] (R = Et, Ph) and [PtCl2(dppm)] with 3-/4-mercaptobenzoic acids in the presence of triethylamine yielded 1, trans-[Pt(SC6H4COOH-4)2(PPh3)2] ( 7) and [Pt(SC6H4COOH- n)2(dppm)] [ n = 3 ( 8), 4 ( 9); dppm = bis(diphenylphosphino)methane], respectively. The complexes 1- 4 and 7 form supramolecular assemblies through intermolecular hydrogen bonding in the solid state. A one-dimensional zigzag chain of carboxy dimers is formed in the structures of 1·H2O and 7, whereas methanol-interrupted large-ring formation leads to a 2D network for 1·(MeOH)2. In the cases of 3·(H2O)2 and 4·(H2O)2, water and counter-anions assisted the formation of 1D networks rather than dimers through carboxylic acid groups.
- Subjects
SUPRAMOLECULAR polymers synthesis; HYDROGEN-ion concentration; PALLADIUM compound synthesis; PLATINUM compound synthesis; HYDROGEN bonding
- Publication
European Journal of Inorganic Chemistry, 2014, Vol 2014, Issue 12, p2153
- ISSN
1434-1948
- Publication type
Article
- DOI
10.1002/ejic.201301562