Phase selectivity in the simultaneous synthesis of the T[sub c] = 12. 8 K (0. 3 kbar) organic superconductor [kappa]-(BEDT-TTF)[sub 2]Cu[N(CN)[sub 2]]Cl or the semiconductor (BEDT-TTF)Cu[N(CN)[sub 2]][sub 2]

Journal Article · · Chemistry of Materials; (United States)

OSTI ID:6720077

Wang, H H; Geiser, U; Williams, J M; Carlson, K D; Kini, A M; Mason, J M; Perry, J T; Charlier, H A; Crouch, A V.S.; Heindl, J E ^[1]

---

1. Argonne National Lab., IL (United States); and others

Superconducting [kappa]-(ET)[sub 2]Cu[N(CN)[sub 2]]Cl was initially prepared from the electrocrystallization of the ET donor molecule in the presence of CuCl and PPh[sub 4][N(CN)[sub 2]]. Crystals of the rhombic shaped Cl salt are usually smaller than those of the isostructural Br salt grown under identical conditions, and in addition, a second competing needle-shaped product frequently grows simultaneously. In this communication, the authors report the first characterization of the needle phase, (ET)Cu[N(CN)[sub 2]][sub 2] by use of X-ray diffraction, ESR spectroscopy, four-probe conductivity measurements, and the synthetic procedures required for the selective growth of single crystals of the superconducting salt.

• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6720077
• Journal Information: Chemistry of Materials; (United States), Vol. 4:2; ISSN 0897-4756
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
COPPER COMPLEXES
PHASE STUDIES
ORGANIC SUPERCONDUCTORS
CRYSTALLIZATION
BEDT-TTF
CHEMICAL PREPARATION
ELECTRIC CONDUCTIVITY
ELECTRON SPIN RESONANCE
SEMICONDUCTOR MATERIALS
COMPLEXES
ELECTRICAL PROPERTIES
HETEROCYCLIC COMPOUNDS
MAGNETIC RESONANCE
MATERIALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
RESONANCE
SUPERCONDUCTORS
SYNTHESIS
TRANSITION ELEMENT COMPLEXES
360602* - Other Materials- Structure & Phase Studies
360607 - Other Materials- Superconducting Properties- (1992-)