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A cadmium(II) coordination polymer formed from a third generation tetratopic tris(pyrazolyl)methane ligand
Author(s) -
Semeniuc Radu F.,
Reger Daniel L.,
Smith Mark D.
Publication year - 2016
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s205322961600783x
Subject(s) - isostructural , chemistry , ligand (biochemistry) , tetrahydrofuran , acetonitrile , alkoxy group , tetrafluoroborate , medicinal chemistry , tris , tripodal ligand , stereochemistry , coordination polymer , molecule , benzene , crystallography , crystal structure , alkyl , organic chemistry , solvent , ionic liquid , biochemistry , receptor , catalysis
The reaction of a third generation tetratopic tris(pyrazolyl)methane ligand, namely 1,2,4,5‐{[2,2,2‐tris(1 H ‐pyrazol‐1‐yl)ethoxy]methyl}benzene {1,2,4,5‐C 6 H 2 [CH 2 OCH 2 C(pz) 3 ] 4 , L4 }, and [Cd 2 (thf) 5 ](BF 4 ) 4 (thf is tetrahydrofuran) produces the coordination polymer catena ‐poly[[[bis[acetonitrilecadmium(II)]‐μ 4 ‐1,2,4,5‐{[2,2,2‐tris(1 H ‐pyrazol‐1‐yl)ethoxy]methyl}benzene] tetrakis(tetrafluoroborate)]–diethyl ether–acetonitrile (1/2/2)], {[Cd 2 (CH 3 CN) 2 (C 54 H 54 N 24 O 4 )](BF 4 ) 4 ·2C 4 H 10 O·2CH 3 CN} n . The Cd II center is coordinated in a κ 3 ‐fashion by one tris(pyrazolyl)methane group and in a κ 2 –κ 0 fashion by another, while the sixth coordination site on the Cd II cation is occupied by an acetonitrile molecule. This bonding mode of the ligand generates an infinite one‐dimensional structure built upon 32‐atom metallomacrocycles connected by the C 6 H 2 spacer. This compound is isostructural with the silver(I) analogue of this ligand, i.e. {[Ag 2 ( L4 )](BF 4 ) 2 ·4CH 3 CN} n , thus showing the tendency of this system to form metal‐based macrocyclic architectures.