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X‐Ray Absorption Spectroscopy of Dimethylcuprates: Evidence for Solvent‐Dependent Aggregation
Author(s) -
Huang Hui,
Liang Chong H.,
PennerHahn James E.
Publication year - 1998
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/(sici)1521-3773(19980619)37:11<1564::aid-anie1564>3.0.co;2-5
Subject(s) - counterion , solvent , extended x ray absorption fine structure , monomer , cyanide , halide , chemistry , absorption (acoustics) , reagent , spectroscopy , absorption spectroscopy , crystallography , inorganic chemistry , photochemistry , materials science , ion , organic chemistry , optics , polymer , physics , quantum mechanics , composite material
Dimeric in Et 2 O and DMS, monomeric in THF —the degree of aggregation of dimethylcuprates depends on the solvent [Eq. (a)]. The Cu–Cu distance of 2.82 Å was determined by EXAFS for a dimethylcuprate reagent derived from cuprous halide. In contrast, with cyanide as the counterion, no dimers are formed.