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The structure of triphenylmethanol, Ph₃COH

Ferguson, George and Gallagher, John F. and Glidewell, Christopher and Low, John N. and Scrimgeour, Sheelagh N. (1992) The structure of triphenylmethanol, Ph₃COH. Acta Crystallographica Section C, 48 (7). pp. 1272-1275. ISSN 0108-2701

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C19H160 , Mr = 260.3, trigonal, R3, a = 19.307 (3), c = 26.735 (4) A, V= 8631 (2) A 3, Z= 24, Dx = 1.20 g cm -3, a(Mo Ka) = 0.71073/~, /.~ = 0.7 cm -1, F(000) = 3312, T = 294 K, R = 0.083, wR = 0.068 for 1022 observed reflections. The structure contains hydrogen-bonded pyramidal tetramers (which have approximate 32 symmetry) with one molecule lying on a crystallographic threefold axis and another in a general position. The analysis was complicated by disorder in the crystal lattice where 71% of the tetramers occupy one orientation and 29% another; these moieties have their phenyl rings in the same volume elements in the lattice. The O...O separations in the hydrogen-bond systems are 2.884 (10) and 2.896 (11)/~ in the major tetramer and 2.80 (3) and 2.90 (3) A in the minor tetramer.

Item Type:Article (Published)
Subjects:Physical Sciences > Organic chemistry
Physical Sciences > Crystallography
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Science and Health > School of Chemical Sciences
Publisher:Institute of Electrical and Electronics Engineers
Official URL:
Copyright Information:© 1992 International Union of Crystallography
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License
ID Code:3612
Deposited On:18 Mar 2009 17:33 by DORAS Administrator. Last Modified 18 Mar 2009 17:33

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