
%0 Journal Article
%A Healy, PC 
%A Kildea, JD 
%A Skelton, BW 
%A White, AH 
%T Lewis-Base Adducts of Group 11 Metal(I) Compounds. XL. Conformational Systematics of [(N-base)1(CuX)<sub>1</sub>]<sub>&#8734;</sub> Orthogonal' Stair' Polymers (N-base = 'One-Dimensional Aceto-nitrile, Benzo-nitrile Ligand)
%J Australian Journal of Chemistry
%D 1989/01/01
%V 42
%N 1
%P 79-91
%K 
%R https://doi.org/10.1071/CH9890079
%U https://www.publish.csiro.au/paper/CH9890079 
%X The structural chemistry of the polymeric 1:1 adducts of copper(1) halides ( CuX ; X = Cl, Br, I) with nitrile bases (exemplified by aceto- and benzo-nitrile ) has been systematically explored. Single-crystal X-ray structure redeterminations of enhanced precision have been carried out for all acetonitrile adducts (refined as orthorhombic, Pbnm , Z 4, a &#8776; 13.0, b &#8776; 8.5, c &#8776; 4.0 Å ; R 0.039, 0.030, 0.043 for No = 534, 365, 727 'observed' reflections) and the chloride and bromide benzonitrile adducts (monoclinic, P21/n, a &#8776; 3.9, b &#8776; 17.5, c &#8776;10.9 Å , &#946; &#8776; 98, Z 4); R 0.046, 0.048 for No = 1452, 1209); all structures are of the common one-dimensional 'stair' polymer type. In these adducts, the ligand is essentially 'one-dimensional' with substituents well removed from the point of attachment and from interaction within the parent polymer chain. Under these circumstances, the polymer is essentially 'orthogonal' with Cu-X crosslinks at (or nearly at) right angles to the polymer axis, and containing quasi-mirror planes, the series providing reference parameters for the description of distortions observed in these polymers when more hindered bases are coordinated. 
