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Macropolyhedral boron-containing cluster chemistry. Models for intermediates en route to globular and discoidal megaloborane assemblies. Structures of closo-C2B10H10)] as determined by synchrotron X-ray diffraction analysis

Lookup NU author(s): Emeritus Professor Bill Clegg

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Abstract

A {B20H28} species, from the oligomerisation of B5H9, has a central nido {B10H12) core with two nido {B5H8} units bound to it at mutually adjacent positions. [(CH2CH2C5H4N)-arachno-B10H10(NC5H4-closo-C2B10H10)], a by-product from the reaction of [B10H12(NCMe)2] with ortho-ethynyl-pyridine, has mutually linked closo {C2B10} and arachno {B10} cluster units conjoined to a central aromatic pyridine unit; the arachno {B10} residue is also fused to an organyl double-ring structure involving a second pyridyl moiety. Both species model possible steps to globular megaloborane synthesis via the assembly of boron hydride units around a central cluster core, as well as having other interesting features. The small size of the crystals for both compounds necessitated the use of synchrotron X-radiation for sufficient diffracted-beam intensity for crystallographic analysis. © 2002 Elsevier Science B.V. All rights reserved.


Publication metadata

Author(s): Bould J, Londesborough MGS, Ormsby DL, Hugh MacBride JA, Wade K, Kilner CA, Clegg W, Teat SJ, Thornton-Pett M, Greatrex R, Kennedy JD

Publication type: Article

Publication status: Published

Journal: Journal of Organometallic Chemistry

Year: 2002

Volume: 657

Issue: 1-2

Pages: 256-261

ISSN (print): 0022-328X

ISSN (electronic): 1872-8561

Publisher: Elsevier S.A.

URL: http://dx.doi.org/10.1016/S0022-328X(02)01551-6

DOI: 10.1016/S0022-328X(02)01551-6


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