similar to the structural repeat in the cubic (sphalerite) lattice and the latter the
hexagonal (wurtzite) lattice of the XII–XVI metal-chalcogenides. The Cd 17 S core
observed in 23 has more recently been documented in the ‘‘double diamond superlattice’’ built up of neutral [Cd 17 S 4 (SCH 2 CH 2 OH) 26 ] clusters. In the solid state,
Fig. 13.18. An illustration of the adamantoid
framework observed in the clusters [M 10 S 4 (mEPh) 16 ]
4À 22 (M ¼ Zn, Cd, Hg; E ¼ S, Se) [69].
This framework is common to the XII–XVI
clusters [M 10 E 4 (m-E
0 R) 12þn L 4Àn ]
nÀ (M ¼ Zn,
Cd, Hg; E ¼ E
0 ¼ S, Se, Te; L ¼ halide, ER,
PR 3 , amine; R ¼ alkyl, aryl) [69, 70, 81, 84, 87,
88].
Fig. 13.19. A projection of the fused admantoid/
barrelanoid arrangement of Cd and S atoms in the cluster
[Cd 17 S 4 (m-SPh) 24 (SPh) 4 ]
2À 23 [71].
13 Large Semiconductor Molecules
440
hexagonal (wurtzite) lattice of the XII–XVI metal-chalcogenides. The Cd 17 S core
observed in 23 has more recently been documented in the ‘‘double diamond superlattice’’ built up of neutral [Cd 17 S 4 (SCH 2 CH 2 OH) 26 ] clusters. In the solid state,
Fig. 13.18. An illustration of the adamantoid
framework observed in the clusters [M 10 S 4 (mEPh) 16 ]
4À 22 (M ¼ Zn, Cd, Hg; E ¼ S, Se) [69].
This framework is common to the XII–XVI
clusters [M 10 E 4 (m-E
0 R) 12þn L 4Àn ]
nÀ (M ¼ Zn,
Cd, Hg; E ¼ E
0 ¼ S, Se, Te; L ¼ halide, ER,
PR 3 , amine; R ¼ alkyl, aryl) [69, 70, 81, 84, 87,
88].
Fig. 13.19. A projection of the fused admantoid/
barrelanoid arrangement of Cd and S atoms in the cluster
[Cd 17 S 4 (m-SPh) 24 (SPh) 4 ]
2À 23 [71].
13 Large Semiconductor Molecules
440