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Polymorphism in {kappa}-(BEDT-TTF){sub 2}M(CF{sub 3}){sub 4}(solvent) superconductors

Conference ·
OSTI ID:282017
; ; ; ; ;  [1]; ;  [2]
  1. Argonne National Lab., IL (United States)
  2. Univ. Koln, Koln (Germany) Inst. fur anorganische Chemie
A new crystallographic modification ({Kappa}{sub L}{sup `}) was found in the BEDT-TTF:M(CF{sub 3}){sub 4}{sup -}: solvent (M=Cu, Ag, Au) system. The structure of monoclinic {Kappa}{sub L}{sup `}-(BEDT- TTF){sub 2}Cu(CF{sub 3}){sub 4}(1,2-dibromo-1-chloroethane = DCBE) is reported. It differs from the orthorhombic {Kappa}{sub L}{sup `}- phase by having all BEDT-TTF molecules tilted in the same direction with respect to the conducting phase normal, whereas in {Kappa}{sub L} the tilt direction alternates between layers.
Research Organization:
Argonne National Lab., IL (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
282017
Report Number(s):
ANL/CHM/CP--90682; CONF-960784--1; ON: DE96013610
Country of Publication:
United States
Language:
English