Quality Control of cis-Dichlorobis(pyridine)platinum(II). The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: cis-Dichlorobis(pyridine)platinum(II), is researched, Molecular C10H10Cl2N2Pt, CAS is 15227-42-6, about Infrared spectroscopic study of dicyanato complexes of platinum. Author is Kharitonov, Yu. Ya.; Evstaf’eva, O. N.; Baranovskii, I. B.; Mazo, G. Ya..
trans-[Pt(NH3)2(CN)2] (I), trans-[Pt(ND3)2(CN)2], trans-Pt(NH3)2(CN)2.AgNO3, trans-[Pt(NH3)2(CN)2X2] (II) where X = Cl, Br, I, or OH, trans-[Pt(ND3)2(CN)2X2] where X = Br or I, cis-[PtA(CN)2] where A = (NH3)2, (pyridine)2, ethylenediamine, or (thiourea)2, cis-[Pten(CN)2X2] where X is Br or OH were studied by ir spectroscopy. Maximum of these compounds are tabulated. On oxidation of Pt, the νpt-CN did not change while νC-N increased ∼40-70 cm.-1 All trans complexes had a singlet and all cis had a doublet νCN. The split for cis complexes was larger for Pt(II) than for Pt(IV). The force constant of the C-N bond changed insignificantly, especially in Pt(II) complexes, on transition from ionic to covalent cyanides. Apparently the σ-bond contribution is larger in Pt(IV) than in Pt(II) complexes. When I was oxidized to II (X = Br) and, this subsequently became reduced, the product obtained was identical with the starting material. The complexes did not rearrange on oxidation and the nature of the X in II did not affect the Pt-N bonds. The νPt-N of trans isomers were at ∼525-31 cm.-1 for Pt(II) or Pt(IV). For the complexes studied, the overall (σ + π) bond strength of Pt-N was approx. the same in Pt(II) and Pt(IV) complexes.
In addition to the literature in the link below, there is a lot of literature about this compound(cis-Dichlorobis(pyridine)platinum(II))Quality Control of cis-Dichlorobis(pyridine)platinum(II), illustrating the importance and wide applicability of this compound(15227-42-6).
Reference:
Tetrahydroisoquinoline – Wikipedia,
1,2,3,4-Tetrahydroisoquinoline | C9H11N – PubChem