62320-29-0Relevant academic research and scientific papers
Trans alkenylpyridine and alkenylamine complexes of platinum
Shaver, Michael P.,Vogels, Christopher M.,Wallbank, Andrew I.,Hennigar, Tracy L.,Biradha, Kumar,Zaworotko, Michael J.,Westcott, Stephen A.
, p. 568 - 576 (2008/10/08)
Addition of cis-cyclooctene (coe) to K2PtCl4 gives trans-[PtCl2(coe)]2 (1), which reacts with excess coe to give trans-PtCl2(coe)2 (2). Compound 2 was characterized by an X-ray diffraction study and crystals were found to be triclinic, a = 5.7838(5), b = 7.4347(6), c = 9.9972(9) A. α = 83.924(1), β = 87.844(2), γ = 73.546(1)°, Z = 1, with space group P1. Addition of 4-vinylpyridine (4vp) to 1 gave trans-PtCl2(4vp)2 (5) which was also characterized by an X-ray diffraction study. Crystals of 5 were monoclinic, a = 8.2255(6), b = 12.8254(10), c = 6.9624(5) A, β = 98.8230(10)°, Z - 2, with space group P21/c. Although alkenylamines react with 1 to give a mixture of products, addition of one equivalent of apve (H2NCH2CH2CH2OCH=CH2) to 1 cleanly afforded the organometallic product trans-PtCl2(coe)(thmo) (thmo = tetrahydro-2-methyl-1,3-oxazine) arising from a metal-catalyzed intramolecular hydroamination of the starting alkenylamine. Initial investigations into the functionalization of metal complexes containing pendant alkene groups have shown that catecholborane can be added in some cases, using a rhodium catalyst, 10 give the corresponding organoboronate ester platinum compounds.
Platinum(II) complexes of substituted pyridine and pyrazole derivatives
Mostafa Hossain,Ogura
, p. 373 - 378 (2007/10/03)
A series of new platinum(II) halo complexes of substituted pyridines and pyrazoles: [trans-PtCl2(C7H7N)2], [trans-PtCl2(C3H4N2)2], [trans-PtCl2(C6H7N)2] and [trans-PtCl2(C4H6N2)2] has been synthesized, and the complexes have been characterised on the basis of their IR, 1H NMR, UV/vis and elemental analysis data. Trans-dichloroplatinum(II) complexes of nitrogen cyclic compounds have been prepared through the reaction of K2[PtCl4] with the corresponding ligands in water or a mixture of water and an organic solvent. The coordination reaction of 3- or 4-substituted pyridine is complete within 10 h and the yields are more than 60%, but that of 2-substituted pyridine requires a longer time (15 h) and the yields are low (44%). Platinum complexes of pyridine with a vinyl group at the ortho position could not be obtained, but those with a methyl or a vinyl group at the para position have been obtained. Each complex has a trans square-planar structure, the platinum being coordinated by two halogen and two nitrogen atoms and lying at a centre of symmetry.
