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The x‐ray crystal and molecular structure of chloro‐α,β,γ,δ‐tetraphenylporphinatopyridinegallium(III)
Author(s) -
Radish K. M.,
Cornillon J.L.,
Korp J. D.,
Guilard R.
Publication year - 1989
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570260436
Subject(s) - hexacoordinate , chemistry , isostructural , monoclinic crystal system , crystallography , gallium , octahedron , crystal structure , porphyrin , crystal (programming language) , atom (system on chip) , metal , stereochemistry , silicon , photochemistry , organic chemistry , computer science , programming language , embedded system
Crystals of the title compound C 49 H 33 N 5 ClGa·1/2C 5 H 5 N·1/2C 5 H 12 [Ga(py)(Cl)(TPP)]·1/2(py)·1/2(n‐pen) are monoclinic, P2 1 /n, a = 13.162(2), b = 23.422(6), c, = 14.677(2) Å, β = 101.47(1)°, and Z = 4. The crystal structure refined to R = 0.056 for 2249 observed reflections. The coordination polyhedron of the gallium atom is an octahedron, and the distances between the central metal and axial ligands are Ga‐Cl = 2.328(1) and Ga‐py = 2.274(3) Å. The gallium atom is displaced slightly out of the porphyrin plane towards Cl, 0.14 Å from the 4N plane and 0.16 Å from the mean porphinato plane, with an average Ga‐N distance of 2.01 Å. Although the complex is isostructural with the Mn and Co analogs, it is the first reported structure of a monomeric hexacoordinate gallium(III) porphyrin.