Crystal structures of bis[(ethane-l,2-diyl)- bis(diphenylphosphine)]-palladium(II) and -platinum(II) Dichloride dichloromethane and dichloro[(ethane-l,2-diyl)bis(diphenyl- phosphine)]platinum(II) dichloromethane

Lutz M. Engelhardt, Jennifer M. Patrick, Colin L. Raston, Paul Twiss, Allan H. White

Research output: Contribution to journalArticlepeer-review

44 Citations (Scopus)

Abstract

The crystal structures of the title compounds have been established by single-crystal X-ray diffraction techniques at 295 K, being refined by least squares to residuals of 0.043, 0.036, 0.036 for 2057, 3176 and 3468 independent ‘observed’ reflections respectively. Crystals of [Pd(diphos)2] Cl2 (1) (diphos = Ph2P(CH2)2PPh2) are monoclinic, P 21/c, with a 12.779(9), b 18.084(10), c 12-942(6) Å, β 119.29(5)°, Z2; for the isostructural platinum analogue (2), a 12.789(4), b 18.099(7), c 12.965(4) Å, β 119-39(2)°. Crystals of [PtCl2(diphos)].CH2Cl2, (3), are orthorhombic, P212121, with a 21 -360(6), β 13-499(4), c 9.551(5) Å, Z 4. Complexes (1) and (2) are also solvated but the nature of the solvation is complicated by disorder and less clearcut than in (3). In (1), Pd-P distances are 2.342(2), 2.347(2) Å in a centrosymmetric molecule; in (2), Pt-P distances are 2.332(2), 2.335(2) Å, while in (3), Pt-P distances are 2.230(2), 2.224(3) A and Pt-Cl are both 2.355(2) Å [cf. 2.233(2), 2.226(2), (2.361(2), 2.357(2)) Å respectively for the previously studied palladium analogue].

Original languageEnglish
Pages (from-to)2193-2200
Number of pages8
JournalAustralian Journal of Chemistry
Volume37
Issue number11
DOIs
Publication statusPublished - 1984
Externally publishedYes

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