2008

ZincI 1700 Nanostructured Crystals: Unique Hybrid Semiconductors Exhibiting Nearly

Zero and Tunable Uniaxial Thermal Expansion Behavior. — The structures of the new hybrid compounds outlined in the scheme are determined by single crystal XRD. The compounds with even numbers of carbon atoms in the diamine unit α-(III), α-(VIa), and α-(VIc) crystallize in the centrosymmetric space group Pbca, and those with odd carbon numbers, α-(VIb) and α-(VId), in the noncentrosymmetric space group Cmc21. All structures contain single atomic slabs of ZnTe resembling puckered honeycomb nets that are interconnected by diamines via coordinative bonds between Zn and N. The combination of two distinctly different structural components in a single crystal lattice leads to semiconducting materials exhibiting nearly zero and tunable thermal expansion behavior as well as tunable electronic and optical properties. — (LI*, J.; BI, W.; KI, W.; HUANG, X.; REDDY, S.; J. Am. Chem. Soc. 129 (2007) 46, 14140-14141; Dep. Chem. Chem. Biol., Rutgers State Univ. N. J., Piscataway, NJ 08854, USA; Eng.) — W. Pewestorf

08- 020