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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3425
Title: Heterobimetallic (pd, pt, cu) complexes of hexapyrazolylcyclotriphosphazene via simultaneous geminal (n2) and nongeminal (n3) coordination modes
Authors: Justin Thomas, K. R.
Chandrasekhar V.
Bryan C.D.
Cordes A.W.
Published in: Journal of Coordination Chemistry
Abstract: Synthesis and spectroscopy of four heterobimetallic compounds containing the metal centres Cu(II)-Pd(II) and Cu(II)-PtCII) with the multidentate nitrogen donor ligand hexakis (3, 5-dimcthyl- pyrazolyI)cyclotriphosphazene, (HPCTP) are reported. The complexes HPCTP cuc12- MX, (M = Pd, X = Cl (3) or Br (4) and M = Pt, X = Cl (5) or Br (6)) were obtained by treating the metal-containing ligands HPCTP-CuX2X = CI(1) or Br(2)) with M(PhCN)2Cl2(M = Pd or Pt). The electronic absorption spectra and electron paramagnetic resonance data indicate the copper in these compounds has a distorted trigonal bipyramidal geometry. A single crystal X-ray determination of 4 is reported. The crystals of 4 are monoclinic with a = 10.570(2), b = 28.863(4), c = 16.009(1)A, β= 98.71(2)°, V = 4827(1)A3, Z - 4, Dc= 1.65 g cm-3and space group P21/c. The geometry about copper is trigonal bipyramidal with mean distances of Cu-N(pz) = 1.987(13), Cu-N(ctp) = 2.352(11) and Cu-Cl = 2.315(10)A while that of palladium is square planar with distances of Pd-N(pz) - 2.045(11) and Pd-Br = 2.384(6). While copper is coordinated through two nongeminal pyrazolyl nitrogen atoms and a cyclophosphazene ring nitrogen atom, coordination to palladium is through geminal pyrazolyl nitrogen atoms. © 1995, Taylor & Francis Group, LLC. All rights reserved.
Citation: Journal of Coordination Chemistry (1995), 35(43894): 337-348
URI: https://doi.org/10.1080/00958979508024046
http://repository.iitr.ac.in/handle/123456789/3425
Issue Date: 1995
Keywords: complex
copper
palladium
phosphazene bimetallic
pyrazole
ISSN: 958972
Author Scopus IDs: 57203389297
7006003609
7102369436
7006516385
Author Affiliations: Thomas, K.R.J., Department of Chemistry, Indian Institute of Technology, Kanpur-208 016, India
Chandrasekhar, V., Department of Chemistry, Indian Institute of Technology, Kanpur-208 016, India
Bryan, C.D., Department oJChemistry and Biochemiptry, University of Arkansas. Fayetteville, Arkunsas 72701-1201, United States
Cordes, A.W., Department oJChemistry and Biochemiptry, University of Arkansas. Fayetteville, Arkunsas 72701-1201, United States
Corresponding Author: Cordes, A.W.; Department oJChemistry and Biochemiptry, University of Arkansas. Fayetteville, Arkunsas 72701-1201, United States
Appears in Collections:Journal Publications [CY]

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