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Molecular and Crystal Structure of an Organoplatinum(II) Complex with Dipyrido[3,2‐ a : 2′,3′‐ c ]phenazine (dppz)
Author(s) -
Klein Axel,
Scheiring Thomas,
Kaim Wolfgang
Publication year - 1999
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/(sici)1521-3749(199907)625:7<1177::aid-zaac1177>3.0.co;2-1
Subject(s) - phenazine , chemistry , crystallography , monoclinic crystal system , crystal structure , molecule , stereochemistry , dihedral angle , hydrogen bond , biochemistry , organic chemistry
The dimesitylplatinum(II) complex PtMes 2 (dppz) (Mes = mesityl = 2,4,6‐trimethylphenyl) crystallizes with one equivalent of toluene (C 43 H 40 N 4 Pt, monoclinic, P2 1 /c, Z = 4, a = 14.3551(14) Å, b = 15.8319(14) Å, c = 15.369(2) Å, β = 96.784(6)°). The (dppz)Pt(C1 Mes ) 2 part of the molecule was found to be planar, the mesityl substituents adopting dihedral angles of 70.3° and 85.5° with that plane. The photoemissive and reversibly reducible and oxidizable complex molecules form pairs in the crystal with the planar phenazine π “tails” overlapping in graphite‐like fashion at 3.427 Å distance. The results are discussed in comparision with a recently reported structure of PtCl 2 (dppz).