Se       10    2⊖    , a Bicyclic Polyselenide | Zendy

Fenske Dieter | Zendy; Kräuter Gertrud | Zendy; Dehnicke Kurt | Zendy

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Se 10 2⊖ , a Bicyclic Polyselenide

Author(s) -

Fenske Dieter,

Kräuter Gertrud,

Dehnicke Kurt

Publication year - 1990

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199003901

Subject(s) - bicyclic molecule , trigonal bipyramidal molecular geometry , yield (engineering) , ion , chemistry , salt (chemistry) , dimethylformamide , crystallography , selenium , inorganic chemistry , stereochemistry , materials science , crystal structure , organic chemistry , metallurgy , solvent

The structural diversity of polyselenide ions has once more been demonstrated. A decaselenadecalin anion Se 10 2⊖can be prepared in over 70% yield by heating a polyselenide solution in dimethylformamide in the presence of [Ph 3 PNPPh 3 ]Cl and a trace of iodine. The product is isolated in the form of black crystals that correspond to a [Ph 3 PNPPh 3 ] ⊕ salt. The two bridgehead selenium atoms in this bicyclo[4.4.0] system are coordinated in such a way as to constitute a distorted pseudo‐trigonal bipyramid, with the bonding between them being equatorial/equatorial.

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