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8 results on '"Xiaoli Ma"'

1. Synthesis and characterization of aluminum-containing tin(IV) heterobimetallic sulfides

Author

Zhi Yang, Xiaoli Ma, Jancik, Vojtech, Zhensheng Zhang, Roesky, Herbert W., Magull, Jorg, Noltemeyer, Marthias, Schmidt, Hans-Georg, Cea-Olivares, Raymundo, and Toscano, Ruben A.

Subjects
Laminated metals -- Chemical properties, Tin compounds -- Chemical properties, Sulfides -- Chemical properties, Chemistry
Abstract

Synthesis and characterization of three aluminum-containing tin(IV) heterobimetallic sulfides are reported. The reaction of [LAI(SLi)2(THF)2]2 [L = HC(CMeNAr)2 Ar = 2,6-[Pr2C6H3] with Ph2SnCl2, MeSnCI4 in THF respectively affords LAI(mu-S)2SnPh2, LAI(mu-S)2SnMe2, and LAI(mu-S)2Sn(mu-S)2AIL in moderate yields.

Published
2006

2. Synthesis and characterization of well-defined aluminum-containing heterobimetallic selenides

Author

Zhi Yang, Xiaoli Ma, Roesky, Herbert W., Ying Yang, Maguli, Jorg, and Ringe, Arne

Subjects
Aluminum compounds -- Spectra, Aluminum compounds -- Electric properties, Nuclear magnetic resonance -- Usage, Chemistry
Abstract

A new strategy is developed for the preparation of aluminum heterobimetallic selenides. These compounds were characterized by elemental analysis, NMR and electron impact-MS.

Published
2007

3. Synthesis, characterization, and hydrolysis of aluminum(III) compounds bearing the C6F5-substituted beta-diketiminate HC[(CMe)(NC6F5)]2 (L) ligand

Author

Zhi Yang, Hongping Zhu, Xiaoli Ma, Jianfang Chai, Roesky, Herbert W., Cheng He, Magull, Jorg, Schmidt, Hans-Georg, and Noltemeyer, Mathias

Subjects
Ligands -- Chemical properties, Ligands -- Research, Hydrolysis -- Analysis, Aluminum -- Chemical properties, Chemistry
Abstract

A series of Al(III) compounds containing the C6F5-sustituted beta-diketiminate ligands LAIMeCl, LAIMe2, LAIMel, and LAlBr2 (L = HC[(CMe)(NC6F5)]2) are synthesized and characterized. A comparison of the hydrolysis products of LAIMeCI and LAIMeI with the C6F5-substituted beta-diketiminate ligand, it is not possible to generate LAIMe(OH).

Published
2006

4. Synthesis of boroxine-linked aluminum complexes

Author

Xiujuan Wang, Hongping Zhu, Xiaoli Ma, Feng Wu, Zhi Yang, and Herbert W. Roesky

Subjects
010405 organic chemistry, Oxide, chemistry.chemical_element, 010402 general chemistry, 01 natural sciences, Boroxine, Medicinal chemistry, 0104 chemical sciences, 3. Good health, Inorganic Chemistry, Metal, chemistry.chemical_compound, chemistry, Aluminium, visual_art, visual_art.visual_art_medium, Physical and Theoretical Chemistry, Boroxine-Linked, Aluminum Complexes
Abstract

The reaction of LAlH(2) (L = HC(CMeNAr)(2), Ar = 2,6-iPr(2)C(6)H(3)) (1) with 3-methylphenylboronic acid and 3-fluorophenylboronic acid resulted in the boroxine-linked aluminum compounds LAl[OB(3-CH(3)C(6)H(4))](2)(μ-O) (2) and LAl[OB(3-FC(6)H(4))](2)(μ-O) (3), respectively. LAl[OB(2-PhC(6)H(4))(OH)](2) (4) was synthesized by the reaction of 1 with 2-biphenylboronic acid. Compound 4 is the intermediate analogue to those, which we postulated for the formation of 2 and 3. The reaction of 1 with 3-hydroxyphenylboronic acid resulted in the first metal benzoboroxole oxide LAl[OB(o-CH(2)O)C(6)H(4)](2) (5), which is formed from a compound with B-(OH)(2) and C-OH functionalities.

Published
2011

5. Synthesis and characterization of aluminum-containing tin(IV) heterobimetallic sulfides

Author

Xiaoli Ma, Hans-Georg Schmidt, Rubén A. Toscano, Zhi Yang, Herbert W. Roesky, Mathias Noltemeyer, Zhensheng Zhang, Jörg Magull, Vojtech Jancik, and Raymundo Cea-Olivares

Subjects
010405 organic chemistry, Mineralogy, chemistry.chemical_element, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, 3. Good health, Characterization (materials science), Inorganic Chemistry, chemistry, Aluminium, Physical and Theoretical Chemistry, Tin, Nuclear chemistry
Abstract

Three novel aluminum-containing tin(IV) heterobimetallic sulfides are reported. The reaction of [LAl(SLi)2(THF)2]2 (1) [L = HC(CMeNAr)2, Ar = 2,6-iPr2C6H3] with Ph2SnCl2, Me2SnCl2, and SnCl4 in THF respectively afforded LAl(mu-S)2SnPh2 (2), LAl(mu-S)2SnMe2 (3), and LAl(mu-S)2Sn(mu-S)2AlL (4) in moderate yields. Compounds 2, 3, and 4 were characterized by elemental analysis, NMR, electron-impact mass spectrometry, and single-crystal X-ray structural analysis.

Published
2006

6. Synthesis, characterization, and hydrolysis of aluminum(III) compounds bearing the C6F5-substituted beta-diketiminate HC[(CMe)(NC6F5)]2 (L) ligand

Author

Hans-Georg Schmidt, Jörg Magull, Mathias Noltemeyer, Cheng He, Jianfang Chai, Xiaoli Ma, Hongping Zhu, Herbert W. Roesky, and Zhi Yang

Subjects
Proton, 010405 organic chemistry, Ligand, Stereochemistry, chemistry.chemical_element, 010402 general chemistry, 01 natural sciences, Acceptor, Medicinal chemistry, 0104 chemical sciences, 3. Good health, Hydrogen halide, Inorganic Chemistry, β diketiminate, chemistry.chemical_compound, Hydrolysis, chemistry, Aluminium, Physical and Theoretical Chemistry, Derivative (chemistry)
Abstract

A series of Al(III) compounds containing the C6F5-substituted beta-diketiminate ligands LAlMeCl (2), LAlMe2 (3), LAlMeI (4), and LAlBr2 (5) (L = HC[(CMe)(NC6F5)]2) were synthesized and characterized. The hydrolysis of 2 and 4 in the presence of 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene as the hydrogen halide acceptor both lead to (LAlMe)2(mu-O) (6), a methylalumoxane derivative, which is the first hydrolysis product with the general formula of (RAlMe)(n)O. A comparison of the hydrolysis products of 2 and 4 with that of L'AlMeCl (L' = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3) shows that with the C6F5-substituted beta-diketiminate ligand, it was not possible to generate LAlMe(OH). This is obviously due to the stronger Brönsted acidity of the proton and the smaller size of the C6F5 group in this compound compared to that of the corresponding 2,6-iPr2C6H3 derivative.

Published
2006

7. Synthesis of Boroxine-Linked Aluminum Complexes.

Author

Xiaoli Ma, Zhi Yang, Xiujuan Wang, Roesky, Herbert W., Feng Wu, and Hongping Zhu

Subjects
*COMPLEX compounds synthesis, *BORON compounds, *ALUMINUM compounds, *CHEMICAL reactions, *INORGANIC chemistry
Abstract

The reaction of LAlH2 (L = HC(CMeNAr)2, Ar = 2,6-iPr2C6H3) (1) with 3-methylphenylboronic acid and 3-fluorophenylboronic acid resulted in the boroxine-linked aluminum compounds LAl[OB(3-CH3C6H4)]2(μ-O) (2) and LAl[OB(3-FC6H4])2(μ-O) (3), respectively. LAl[OB(2-PhC6H4)(OH)]2 (4) was synthesized by the reaction of 1 with 2-biphenylboronic acid. Compound 4 is the intermediate analogue to those, which we postulated for the formation of 2 and 3. The reaction of 1 with 3-hydroxyphenylboronic acid resulted in the first metal benzoboroxole oxide LAl[OB(o-CH2O)C6H4]2 (5), which is formed from a compound with B—(OH)2 and C—OH functionalities. [ABSTRACT FROM AUTHOR]

Published
2011
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