A new series of iodocarbonyl ruthenium (II) complexes with unsymmetrical phosphine-phosphine sulfide ligands of the type Ph2P(CH2)nP(S)Ph2, n = 1-4: Isolation and structural investigation
IR@NEIST: CSIR-North East Institute of Science and Technology, Jorhat
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| Title |
A new series of iodocarbonyl ruthenium (II) complexes with unsymmetrical phosphine-phosphine sulfide ligands of the type Ph2P(CH2)nP(S)Ph2, n = 1-4: Isolation and structural investigation
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| Creator |
DUTTA , D K
CHUTIA , P WOOLLINS , J D SLAWIN , A M Z |
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| Subject |
Material Science
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| Description |
Hexa-coordinated chelate complex cis-[Ru(CO) 2I 2(P\S)] (1a){P\S=g 2-(P,S)-coordinated} and penta-coordinated non-chelate
complexes cis-[Ru(CO) 2I 2(P$S)] (1b–d){P$S=g1-(P)-coordinated} are produced by the reaction of polymeric [Ru(CO) 2I 2] n with
equimolar quantity of the ligands Ph 2P(CH 2) nP(S)Ph 2 {n=1(a),2(b),3(c),4(d)} in dichloromethane at room temperature. The
bidentatenatureoftheligandainthecomplex1aleadstotheformationoffive-memberedchelateringwhichconfersextrastability
tothecomplex.Ontheotherhand,1:2(Ru:L)molarratioreactionaffordsthehexa-coordinatednon-chelatecomplexescis,cis,trans[Ru(CO)
2I 2(P$S) 2](2a–d)irrespectiveoftheligands.Allthecomplexesshowtwoequallyintenseterminalm(CO)bandsintherange
2028–2103cm 1. Them(PS) band of complex 1a occurs 23cm 1 lower region compared to the corresponding free ligand suggesting
chelation via metal–sulfur bond formation. X-ray crystallography reveals that the Ru(II) atom occupies the center of a slightly distortedoctahedralgeometry.Thecomplexeshavealsobeencharacterizedbyelementalanalysis,
1H, 13Cand 31PNMRspectroscopy.
2005 Elsevier B.V. All rights reserved.
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| Date |
2006
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Article
PeerReviewed |
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| Format |
application/pdf
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| Identifier |
http://neist.csircentral.net/282/1/2245_JMC%2DDipak%2D2006.pdf
DUTTA , D K and CHUTIA , P and WOOLLINS , J D and SLAWIN , A M Z (2006) A new series of iodocarbonyl ruthenium (II) complexes with unsymmetrical phosphine-phosphine sulfide ligands of the type Ph2P(CH2)nP(S)Ph2, n = 1-4: Isolation and structural investigation. Inorganica chemica acta, 359. pp. 877-882. |
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http://neist.csircentral.net/282/
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