The reactions of [Cp,Mo,(CO),] (1) with 2,2'-dipyridyl disulphide (C,H,NS-)a, 8,8'-diquinolyl dis... more The reactions of [Cp,Mo,(CO),] (1) with 2,2'-dipyridyl disulphide (C,H,NS-)a, 8,8'-diquinolyl disulphide (C,H,NS-J, and tetramethyl thiuram disulphide (MezNCfS)S-), in toluene solution resulted in the cleavage of the MO-MO triple bond to yield molybdenum complexes [CpMdCO),(C,H,NSJ] (21, [CpMdCO),(C,H,NS)] (3) and [CpMdCOJ&CNMe,l] (41, respectively. The molecular structures of 2, 3.O=PPh, and 4 were determined by X-ray diffraction studies. crystals of 2 are monoclinic, space group P2,/n, with Z = 4, in a unit cell of dimensions a = 6.448(l), b = 12.616(2), c = 14.772(2) A, p = 92.850)". The structure was refined to R = 0.028 and R, = 0.039 for 1357 observed reflections. Cystah of 3.O=PPh, are triclinic, space group Pi, with Z = 2, in a unit cell of dimensions a = 11.351(3), b = 13.409(3), c = 9.895(2) A, rr = 94.59(2), p = 90.35(2), y = 78.07(2Y. The structure was refined to R = 0.033 and R, = 0.037 for 3260 Fbserved reflections. Crystals of 4 are monoclinic, space group P2,/a and Z = 4 with a = 12.468(5), 6 = 7.637(2), c = 13.135(4) A, /I = 96.62(3)". The structure was refined to R = 0.032 and R, = 0.042 for 1698 observed reflections. Each of complexes 2-4 contains a cyclopentadienyl ligand, a ci.r pair of carbonyls and a chelate ligand (S,N donor or S,S donor). All the compounds have distorted square-pyramid structures.
Dinuclear complexes [Mo-2(mu-pyS)(2)(CO)(4)(PPh(3))(2)] (1), [Mo-2(mu-pyS)(2)(CO)(5)(PPh(3))] (2)... more Dinuclear complexes [Mo-2(mu-pyS)(2)(CO)(4)(PPh(3))(2)] (1), [Mo-2(mu-pyS)(2)(CO)(5)(PPh(3))] (2) and a trace quality of trinuclear complex [Mo-3(mu-pyS)(2)(mu(3)-pyS)(2)(CO)(6)] (3) were obtained from the reaction of [Mo(CO)(3)(MeCN)(3)] with pyridine-2-thione (pySH) and PPh(3) in THF. The crystal structures of 1.2C(7)H(8) and 3.7 C7H8 have been determined by X-ray diffraction studies. Crystals of 1.2C(7)H(8) are monoclinic, space group C2/c and Z = 4, with a = 18.797(3), b = 11.143(4), c = 28.157(7) Angstrom, beta = 101.23(2)degrees. The structure was refined to R = 0.050 and Rw = 0.057 for 3146 observed reflections, Crystals of 3.7 C7H8 are monoclinic, space group P2(1)/a and Z = 4, with a = 13.912(2), b = 17.161(2), c = 15.577(3) Angstrom, beta = 101.17(1)degrees. The structure was refined to R = 0.046 and Rw = 0.051 for 4357 observed reflections. The molecule of 1 consists of two Mo(CO)(2)(PPh(3)) fragments linked by an Mo-Mo bond (2.974(2)Angstrom) and by two doubly-bridging pyS ligands. The compound 3 contains a bent open geometry of three molybdenum atoms (Mo(1)-Mo(2)-Mo(3) angle 122.99(3)degrees) linked by two Mo-Mo bonds (2.943(1) and 2.950(1) Angstrom) and by two doubly- and two triply-bridging pyS ligands.
Direkt zugänglich und überraschend stabil sind neutrale und anionische μ3‐Imido‐Rhodium‐Cluster. ... more Direkt zugänglich und überraschend stabil sind neutrale und anionische μ3‐Imido‐Rhodium‐Cluster. Der ungewöhnliche Komplex [Rh4(μ‐MeC6H4N)2(cod)4], dessen Struktur im Kristall rechts vereinfacht dargestellt ist (Rh = schraffiert), enthält zwei verbrückende Imidoliganden, die ein aus Metallatomen gebildetes Dreieck überdachen. Einer dieser Liganden koordiniert außerdem über den p‐Tolyl‐Ring η5‐Cyclohexadienyl‐artig ein [Rh(cod)]‐Fragment. cod = 1,5‐Cyclooctadien.magnified image
ZUSCHRIFTEN unter Ruhren eine kldre Losung von 306 mg (1.536 mmol) Me,SnCI in 12 mL H,O getropft.... more ZUSCHRIFTEN unter Ruhren eine kldre Losung von 306 mg (1.536 mmol) Me,SnCI in 12 mL H,O getropft. Ausbeute nach Aufarbeitung wie oben: 320 mg (0.352 mmol, 92% d. Th.).-Einkristallzuchtungen von 5 gemaD Gleichung (b), jedoch mit 3bis 5fach verdunnteren Losungen. Ein analytisch und spektroskopisch von 5 nicht unterscheidbares Isotopomer [(nBu,), ,(Me,Sn),,Fe(CN), D,O] wurde gemlB Gleichung (b) in D,O erhalten.
Angewandte Chemie International Edition in English, 1996
... 1969, 877-878; b) A. G. Shultz, RD Lucci, JJ Napier, H. Kinoshita, R. Ravichandra, P Shannon,... more ... 1969, 877-878; b) A. G. Shultz, RD Lucci, JJ Napier, H. Kinoshita, R. Ravichandra, P Shannon, YK Lee. ... Reversible Formation of Raftlike Organoimidotetrarhodium Clusters by the Migration of RhL: Fragments** Cristina Tejel, You-Mao Shi, Miguel A. Ciriano,* Andrew J. Edwards ...
Materials Science in Semiconductor Processing, 1999
The process for generating nanocomposite films constructed from alternate thin film layers of Ba0... more The process for generating nanocomposite films constructed from alternate thin film layers of Ba0.5Sr0.5TiO3 and PbZr0.48Ti0.52O3 by photochemical metal–organic deposition and sol-gel has been investigated. By spin coating the appropriate metal organic precursors to Ba0.5 Sr0.5TiO3 followed by photolysis a single layer of amorphous Ba0.5Sr0.5TiO3, is produced. Subsequent spin coating of the appropriate metal organic precursors of PbZr0.48Ti0.52O3 and photolysis
The reactions of [Cp,Mo,(CO),] (1) with 2,2'-dipyridyl disulphide (C,H,NS-)a, 8,8'-diquinolyl dis... more The reactions of [Cp,Mo,(CO),] (1) with 2,2'-dipyridyl disulphide (C,H,NS-)a, 8,8'-diquinolyl disulphide (C,H,NS-J, and tetramethyl thiuram disulphide (MezNCfS)S-), in toluene solution resulted in the cleavage of the MO-MO triple bond to yield molybdenum complexes [CpMdCO),(C,H,NSJ] (21, [CpMdCO),(C,H,NS)] (3) and [CpMdCOJ&CNMe,l] (41, respectively. The molecular structures of 2, 3.O=PPh, and 4 were determined by X-ray diffraction studies. crystals of 2 are monoclinic, space group P2,/n, with Z = 4, in a unit cell of dimensions a = 6.448(l), b = 12.616(2), c = 14.772(2) A, p = 92.850)". The structure was refined to R = 0.028 and R, = 0.039 for 1357 observed reflections. Cystah of 3.O=PPh, are triclinic, space group Pi, with Z = 2, in a unit cell of dimensions a = 11.351(3), b = 13.409(3), c = 9.895(2) A, rr = 94.59(2), p = 90.35(2), y = 78.07(2Y. The structure was refined to R = 0.033 and R, = 0.037 for 3260 Fbserved reflections. Crystals of 4 are monoclinic, space group P2,/a and Z = 4 with a = 12.468(5), 6 = 7.637(2), c = 13.135(4) A, /I = 96.62(3)". The structure was refined to R = 0.032 and R, = 0.042 for 1698 observed reflections. Each of complexes 2-4 contains a cyclopentadienyl ligand, a ci.r pair of carbonyls and a chelate ligand (S,N donor or S,S donor). All the compounds have distorted square-pyramid structures.
Dinuclear complexes [Mo-2(mu-pyS)(2)(CO)(4)(PPh(3))(2)] (1), [Mo-2(mu-pyS)(2)(CO)(5)(PPh(3))] (2)... more Dinuclear complexes [Mo-2(mu-pyS)(2)(CO)(4)(PPh(3))(2)] (1), [Mo-2(mu-pyS)(2)(CO)(5)(PPh(3))] (2) and a trace quality of trinuclear complex [Mo-3(mu-pyS)(2)(mu(3)-pyS)(2)(CO)(6)] (3) were obtained from the reaction of [Mo(CO)(3)(MeCN)(3)] with pyridine-2-thione (pySH) and PPh(3) in THF. The crystal structures of 1.2C(7)H(8) and 3.7 C7H8 have been determined by X-ray diffraction studies. Crystals of 1.2C(7)H(8) are monoclinic, space group C2/c and Z = 4, with a = 18.797(3), b = 11.143(4), c = 28.157(7) Angstrom, beta = 101.23(2)degrees. The structure was refined to R = 0.050 and Rw = 0.057 for 3146 observed reflections, Crystals of 3.7 C7H8 are monoclinic, space group P2(1)/a and Z = 4, with a = 13.912(2), b = 17.161(2), c = 15.577(3) Angstrom, beta = 101.17(1)degrees. The structure was refined to R = 0.046 and Rw = 0.051 for 4357 observed reflections. The molecule of 1 consists of two Mo(CO)(2)(PPh(3)) fragments linked by an Mo-Mo bond (2.974(2)Angstrom) and by two doubly-bridging pyS ligands. The compound 3 contains a bent open geometry of three molybdenum atoms (Mo(1)-Mo(2)-Mo(3) angle 122.99(3)degrees) linked by two Mo-Mo bonds (2.943(1) and 2.950(1) Angstrom) and by two doubly- and two triply-bridging pyS ligands.
Direkt zugänglich und überraschend stabil sind neutrale und anionische μ3‐Imido‐Rhodium‐Cluster. ... more Direkt zugänglich und überraschend stabil sind neutrale und anionische μ3‐Imido‐Rhodium‐Cluster. Der ungewöhnliche Komplex [Rh4(μ‐MeC6H4N)2(cod)4], dessen Struktur im Kristall rechts vereinfacht dargestellt ist (Rh = schraffiert), enthält zwei verbrückende Imidoliganden, die ein aus Metallatomen gebildetes Dreieck überdachen. Einer dieser Liganden koordiniert außerdem über den p‐Tolyl‐Ring η5‐Cyclohexadienyl‐artig ein [Rh(cod)]‐Fragment. cod = 1,5‐Cyclooctadien.magnified image
ZUSCHRIFTEN unter Ruhren eine kldre Losung von 306 mg (1.536 mmol) Me,SnCI in 12 mL H,O getropft.... more ZUSCHRIFTEN unter Ruhren eine kldre Losung von 306 mg (1.536 mmol) Me,SnCI in 12 mL H,O getropft. Ausbeute nach Aufarbeitung wie oben: 320 mg (0.352 mmol, 92% d. Th.).-Einkristallzuchtungen von 5 gemaD Gleichung (b), jedoch mit 3bis 5fach verdunnteren Losungen. Ein analytisch und spektroskopisch von 5 nicht unterscheidbares Isotopomer [(nBu,), ,(Me,Sn),,Fe(CN), D,O] wurde gemlB Gleichung (b) in D,O erhalten.
Angewandte Chemie International Edition in English, 1996
... 1969, 877-878; b) A. G. Shultz, RD Lucci, JJ Napier, H. Kinoshita, R. Ravichandra, P Shannon,... more ... 1969, 877-878; b) A. G. Shultz, RD Lucci, JJ Napier, H. Kinoshita, R. Ravichandra, P Shannon, YK Lee. ... Reversible Formation of Raftlike Organoimidotetrarhodium Clusters by the Migration of RhL: Fragments** Cristina Tejel, You-Mao Shi, Miguel A. Ciriano,* Andrew J. Edwards ...
Materials Science in Semiconductor Processing, 1999
The process for generating nanocomposite films constructed from alternate thin film layers of Ba0... more The process for generating nanocomposite films constructed from alternate thin film layers of Ba0.5Sr0.5TiO3 and PbZr0.48Ti0.52O3 by photochemical metal–organic deposition and sol-gel has been investigated. By spin coating the appropriate metal organic precursors to Ba0.5 Sr0.5TiO3 followed by photolysis a single layer of amorphous Ba0.5Sr0.5TiO3, is produced. Subsequent spin coating of the appropriate metal organic precursors of PbZr0.48Ti0.52O3 and photolysis
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