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Hexaaryltetragermabuta‐1,3‐diene: A Molecule with Conjugated Ge−Ge Double Bonds
Author(s) -
Schäfer Helmut,
Saak Wolfgang,
Weidenbruch Manfred
Publication year - 2000
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20001016)39:20<3703::aid-anie3703>3.0.co;2-9
Subject(s) - dihedral angle , conjugated system , double bond , molecule , germanium , crystal (programming language) , crystallography , diene , absorption (acoustics) , chemistry , hexane , photochemistry , materials science , hydrogen bond , polymer , polymer chemistry , organic chemistry , natural rubber , silicon , computer science , composite material , programming language
The longest wavelength absorption of the dark blue solution of the tetragermabutadiene 1 (Tip=2,4,6‐ i Pr 3 C 6 H 2 ) in n ‐hexane at 560 nm indicates a pronounced conjugation of the two Ge−Ge double bonds. In the crystal, 1 adopts the s‐ cis conformation with a dihedral angle for the Ge 4 framework of 22.5°.