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Directed Selenium–Iodine Halogen Bonding and Se···H–C Contacts in Solid Iododiisopropylphosphane Selenide

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posted on 22.02.2016, 10:13 by Constantin G. Daniliuc, Cristian G. Hrib, Peter G. Jones, Wolf-W. du Mont
Solid iododiisopropylphosphane selenide crystallizes in the space group P21/n with one molecule iPr2P­(I)Se in the asymmetric unit. Halogen bonds of the type Se···I–P (Se···I, 3.612 Å; Se···I–P, 171°) connect the molecules to form polymeric chains (-Se···I–P-)x. These are further connected by Se···H contacts (2.98 Å) involving the tertiary H atom from one isopropyl group. The extended structure thus formed is a layer parallel to 101̅, and a substructure thereof consists of 10-membered (···Se···I–P–C–H···)2 rings.

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