| Author(s) |
Pal, M. K.; Jain, V. K.; Kushwah, N. P.; Wadawale, A.; Glazun, S. A.; Starikova, Z. A.; Bregadze, V. I. |
|
The reactions of PhCboSeNa (Cbo
= o-C 2B10H10), prepared by
reductive cleavage of Se-Se bond in (PhCboSe)2
by NaBH4 in methanol, with Na2PdCl4,
MCl2(PR3)2 and [M2Cl2(µ-Cl)2(PR3)
2] afforded a variety of complexes, viz., [Pd(SeCboPh)Cl]
(1), [M(SeCboPh)2(PR3)2],
[M 2Cl2(µ-SeCboPh)(µ-Cl)(PR3)2]
(M = Pd, Pt) and [Pd2Cl(SeCb 0Ph)(µ-Cl)(µ-SeCboPh)(PEt3)2]
(7) have been isolated. These complexes were characterized by
elemental analyses and NMR (1H, 31P, 77Se,
195Pt) spectroscopy. The structures of [Pd(SeCboPh)2(PEt
3)2] (2), [Pt(SeCboPh)2(PMe
2Ph)2] (3), [Pd2Cl2(µ-SeCb
oPh)(µ-Cl)(PMe2Ph)2] (5) and [Pd
2Cl(SeCboPh)(µ-Cl)(µ-SeCboPh)(PEt
3)2] (7) were established by X-ray
crystallography. The latter represents the first example of
asymmetric coordination of selenolate ligands in binuclear bis
chalcogenolate complexes of palladium and platinum. Thermolysis of
[Pd(SeCboPh)2(PEt3)2]
(2) in HDA (hexadecylamine) at 330 °C gave nano-crystals of Pd 17Se15. |