General Introduction - Material Designs and New Physical Properties in MX-and MMX-Chain Compounds - page 2

Fig. 1.1 Schematic chain
structure of (a) MX- and
(b) MMX-chains
Fig. 1.2 Crystal structure of
Wolffram red salt [Pt(etn) 4 Cl]
Cl 2 ·2H 2 O
red color. This complex used to be thought of as a Pt 3+ complex, but it has been
shown by X-ray crystal structure analysis that this complex is alternatively stacked
by square planer [Pt 2+ (etn) 4 ] 2+ and octahedral [Pt 4+ (etn) 4 Cl 2 ] 2+ [ 19 ]. Tsuchida et al.