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Synthese und Koordinationsverhalten von Selenoalkinylen R‐Se‐C≡C‐R′
Author(s) -
Lang Heinrich,
Keller Holger,
Imhof Wolfgang,
Martin Sabine
Publication year - 1990
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19901230302
Subject(s) - chemistry , steric effects , alkyne , cobalt , yield (engineering) , stereochemistry , medicinal chemistry , organic chemistry , catalysis , materials science , metallurgy
Synthesis and Coordination Ability of Selenoalkynes R ‐ Se ‐ C ≡ C ‐ R′ Several synthetic methods for the preparation of selenoalkynes R–Se–C≡C–R′ ( 1 ) are discussed. 1 reacts with octacarbonyl dicobalt to yield the η 2 ‐π‐side‐on coordinated alkyne complexes R‐Se[(η 2 ‐C≡C–R′)Co 2 (CO) 6 ( 8 ) which contain a sterically hindered carbon–cobalt tetrahedrane cluster unit. The identity of compounds 1 and 8 is documented by analytical and spectroscopic [IR, MS, 1 H‐, 77 Se‐, and 13 C‐NMR) data as well as by X‐ray analysis of C 6 H 5 )Co 2 ‐(CO) 6 ] ( 8a ).