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Wechselwirkungen in Molek ¨ulkristallen, 168 [1, 2].

-Donator/Akzeptor-Komplexe {HCI

3

···X }(X = Cl, Br , I ) von Triiodmethan in Tetraphenylphosphoniumhalogeniden

Interaction in Molecular Crystals, 168 [1, 2].

-Donor/Acceptor Complexes

f

HCI

3

X

g

(X = Cl , Br , I ) of Triiodomethane in Tetraphenylphosphonium Halides

Hans Bock und Sven Holl

Institut der Anorganischen Chemie der Universit¨at Frankfurt, Marie-Curie-Str. 11, D-60439 Frankfurt am Main

Sonderdruckanforderungen an Prof. Dr. H. Bock. Fax: +49 (0)69/798 29188.

Professor Peter Schuster zum 60. Geburtstag gewidmet

Z. Naturforsch.56 b,152–163 (2001); eingegangen am 9. August 2000

Triiodomethane Adducts, Tetraphenylphosphonium Halides,-Donor/Acceptor and Phenyl/Phenyl Interactions

Three donor/acceptor complexes between halide anion donors and the triiodomethane accep- tor with tetraphenylphosphonium countercations,f(H5C6)4PX I3CH)g(X = Cl , Br , I ) could be crystallized and their structures determined at low temperature. Their crystal packing motifs are donor/acceptor layers of halide anion/triiodomethane patterns and phe- nyl/phenyl interacting tetraphenylphosphonium cation chains. Structure comparison and dis- cussion are based on literature-known analogous adducts with organoammonium salts as well as the phenyl/phenyl interactions in the numerous tetraphenylphosphonium salts registered in the Cambridge Structural Database. The results add novel facets to the selforganization phenomena observed on crystallization of halogen compounds and halide salts.

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