TY - JOUR
T1 - Germanium Compounds Containing Ge- =E Double Bonds (E = S, Se, Te) as Single-Source Precursors for Germanium Chalcogenide Materials
AU - Kim, Hyo Suk
AU - Jung, Eun Ae
AU - Han, Seong Ho
AU - Han, Jeong Hwan
AU - Park, Bo Keun
AU - Kim, Chang Gyoun
AU - Chung, Taek Mo
N1 - Publisher Copyright:
© 2017 American Chemical Society.
PY - 2017/4/3
Y1 - 2017/4/3
N2 - New germanium chalcogenide precursors, S- =Ge(dmamp)2 (3), S- =Ge(dmampS)2 (4), Se- =Ge(dmamp)2 (5), Se- =Ge(dmampS)2 (6), Te- =Ge(dmamp)2 (7), and Te- =Ge(dmampS)2 (8), were synthesized from Ge(dmamp)2 (1) and Ge(dmampS)2 (2) using sulfur, selenium, and tellurium powders (dmamp = 1-dimethylamino-2-methyl-2-propanolate, dmampS = 1-dimethylamino-2-methylpropane-2-thiolate). Complexes 1 and 2 were synthesized from metathesis reactions of GeCl2·dioxane with 2 equiv of aminoalkoxide or aminothiolate ligands. Thermogravimetric analysis of complex 1 displayed good thermal stability and volatility. The molecular structures of complexes 2-8 from X-ray single crystallography showed distorted trigonal bipyramidal geometry at the germanium centers. Germanium chalcogenide materials (GeSe and GeTe) were obtained from the thermal decomposition of complexes 5, 6, and 8 in hexadecane. X-ray diffraction patterns exhibited that GeSe and GeTe had orthorhombic and rhombohedral phases, respectively. This study affords a facile method to easily prepare germanium chalcogenide materials using well-designed and stable complexes by thermal decomposition of single-source precursors in solution.
AB - New germanium chalcogenide precursors, S- =Ge(dmamp)2 (3), S- =Ge(dmampS)2 (4), Se- =Ge(dmamp)2 (5), Se- =Ge(dmampS)2 (6), Te- =Ge(dmamp)2 (7), and Te- =Ge(dmampS)2 (8), were synthesized from Ge(dmamp)2 (1) and Ge(dmampS)2 (2) using sulfur, selenium, and tellurium powders (dmamp = 1-dimethylamino-2-methyl-2-propanolate, dmampS = 1-dimethylamino-2-methylpropane-2-thiolate). Complexes 1 and 2 were synthesized from metathesis reactions of GeCl2·dioxane with 2 equiv of aminoalkoxide or aminothiolate ligands. Thermogravimetric analysis of complex 1 displayed good thermal stability and volatility. The molecular structures of complexes 2-8 from X-ray single crystallography showed distorted trigonal bipyramidal geometry at the germanium centers. Germanium chalcogenide materials (GeSe and GeTe) were obtained from the thermal decomposition of complexes 5, 6, and 8 in hexadecane. X-ray diffraction patterns exhibited that GeSe and GeTe had orthorhombic and rhombohedral phases, respectively. This study affords a facile method to easily prepare germanium chalcogenide materials using well-designed and stable complexes by thermal decomposition of single-source precursors in solution.
UR - http://www.scopus.com/inward/record.url?scp=85016963777&partnerID=8YFLogxK
U2 - 10.1021/acs.inorgchem.6b02697
DO - 10.1021/acs.inorgchem.6b02697
M3 - Article
C2 - 28326773
AN - SCOPUS:85016963777
SN - 0020-1669
VL - 56
SP - 4084
EP - 4092
JO - Inorganic Chemistry
JF - Inorganic Chemistry
IS - 7
ER -