Complexes of metal ions with phosphorus or arsenic containing ligands,part XX. Chelates ofo-phenylenebis(diarylarsines) with palladium(II) and platinum(II) halides,pseudohalides and perchlorates |
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| Authors: | Sarjit S. Sandhu Mrs Sukhvinder Chawla Swam S. Parmar |
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| Affiliation: | (1) Department of Chemistry, Guru Nanak Dev University, Amritsar, India |
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| Abstract: | Summary Two ditertiaryarsines,o-phenylenebis(diphenylarsine), (pdpa) ando-phenylenebis(di-p-tolylarsine), (pdta) yield some new complexes of palladium(II) and platinum(II). These are: square planar M(pdta)X2 · nCH2Cl2, [M = Pd, X = Cl, Br or NCS; M = Pt, X = Cl]; [Pt(A-A)2] X2 · nCH2Cl2, [(A-A) = pdta, X = Cl, NCS or ClO4; (A-A) = pdpa, X=ClO4] and [M2(A-A)2(NCS)2] (ClO4)2 · nCH2Cl2, [M = Pd, (A-A) = pdta; M = Pt, (A-A) = pdpa]; distorted octahedral M(pdta)2-X2nCH2Cl2, [M = Pd, X = I; M = Pt, X = Br or I] and [Pd(pdta)2(H2O)2](ClO4)2, and five coordinate [M(A-A)2X] ClO4 · nCH2Cl2, [M = Pd, Pt, (A-A) = pdta, X = I; M = Pt, (A-A) = pdpa, X = Br or I]. The [M2(A-A)2(NCS)2] (ClO4)2 · nCH2Cl2 complexes are novel in the sense that they contain bridging thiocyanate together with ionic perchlorate. The stereochemical assignments have been made on the basis of i.r. and u.v. spectra as well as conductance data. |
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