Preparation and nuclear magnetic resonance characterization of N-bonded complexes of platinum(II) with phosphorus-nitrogen rings containing three-coordinate chalcogens: x-ray structure of [PtCl2(PEt3)]2(Ph4P2N4Se2Et2)
| dc.contributor.author | Chivers, Tristram | |
| dc.contributor.author | Doxsee, Daniel D. | |
| dc.contributor.author | Hilts, Robert | |
| dc.contributor.author | Parvez, Masood | |
| dc.date.accessioned | 2022-05-27T01:14:01Z | |
| dc.date.available | 2022-05-27T01:14:01Z | |
| dc.date.issued | 1993 | |
| dc.description.abstract | The reaction of 1,5-Ph4P2N4S2Ph2 with [PtCl2CPEt3)]2 in chloroform at 60 °C produces the 1:1 adduct trans-PtCl2(PEt3)(Ph4P2N4S2Ph2) in which the platinum is attached to a nitrogen atom on the basis of 31P nmr spectroscopy. By contrast, the corresponding reactions of 1,5-Ph4P2N4Se2R2 (R = Me, Et, Ph) produce the 2:1 adducts [PtCl2(PEt3)]2(Ph4P2N4Se2R2) (7a, R = Me; 7b, R = Et; 7c, R = Ph) which have been characterized by 1H, 31P and 77Se nmr spectroscopy and, in the case of 7b, by X-ray crystallography. Crystals of 7b are monoclinic, space group C2/c, with a = 27.803(7) Å, b = 12.378(7) Å, c = 15.752(8) Å, β = 115.49(2)°, V = 4893(3) Å3, and Z = 4. The least-squares refinement with anisotropic thermal parameters for all non-hydrogen atoms converged at R = 0.037 and Rw = 0.022. The platinum centres in 7b are attached to distal nitrogen atoms of the disordered P2N4Se2 ring. The reaction of the six-membered ring Ph4P2N3SPh with [PtCl2(PEt3)]2 in dichloromethane at 23 °C occurs in a regiospecific manner to give the 1:1 adduct PtCl2(PEt3)(Ph4P2N3SPh) in which, on the basis of 31P nmr spectroscopy, the platinum is coordinated to a nitrogen atom between phosphorus and sulfur. | |
| dc.description.uri | https://library.macewan.ca/cgi-bin/SFX/url.pl/7PU | |
| dc.identifier.citation | Preparation and nuclear magnetic resonance characterization of N-bonded complexes of platinum(II) with phosphorus-nitrogen rings containing three-coordinate chalcogens: X-ray structure of [PtCl2(PEt3)]2(Ph4P2N4Se2Et2). (1993). Canadian Journal of Chemistry, 71(11), 1821–1827. | |
| dc.identifier.doi | https://doi.org/10.1139/v93-227 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14078/341 | |
| dc.language | English | |
| dc.language.iso | en | |
| dc.rights | All Rights Reserved | |
| dc.title | Preparation and nuclear magnetic resonance characterization of N-bonded complexes of platinum(II) with phosphorus-nitrogen rings containing three-coordinate chalcogens: x-ray structure of [PtCl2(PEt3)]2(Ph4P2N4Se2Et2) | en |
| dc.type | Article | |
| dspace.entity.type |