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6 results on '"NAR 2"'

1. Preparation of LGe(Se)OH: A Germanium Analogue of a Selenocarboxylic Acid (L = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3)

Author

and Rainer B. Oswald, Herbert W. Roesky, Leslie W. Pineda, and Vojtech Jancik

Subjects
chemistry.chemical_classification, 010405 organic chemistry, Organic Chemistry, chemistry.chemical_element, Mineralogy, Germanium, 010402 general chemistry, 01 natural sciences, Oxidative addition, 0104 chemical sciences, Inorganic Chemistry, Acid strength, chemistry, Density functional theory, Physical and Theoretical Chemistry, Selenium, Nuclear chemistry, NAR 2
Abstract

LGe(Se)OH (2) (L = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3) was obtained by oxidative addition of red selenium to LGeOH (1). Compound 2 was characterized by IR, multinuclear NMR, EI-MS, and single-crystal X-ray diffraction. Furthermore, theoretical calculations of the acid strength (pKa) of compound 2 and LGe(S)OH were carried out by means of density functional theory (DFT).

Published
2006

2. Syntheses and Structural Characterization of a LAl(N3)N[μ-Si(N3)(tBu)]2NAl(N3)L and a Monomeric Aluminum Hydride Amide LAlH(NHAr) (L = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3)

Author

Herbert W. Roesky, Jörg Magull, Hongping Zhu, Mathias Noltemeyer, Zhi Yang, and and Hans-Georg Schmidt

Subjects
010405 organic chemistry, Chemistry, Stereochemistry, Organic Chemistry, ALUMINUM HYDRIDE, 010402 general chemistry, 01 natural sciences, Medicinal chemistry, 0104 chemical sciences, 3. Good health, Inorganic Chemistry, chemistry.chemical_compound, Monomer, Amide, Physical and Theoretical Chemistry, NAR 2
Abstract

Reactions between the aluminum(I) monomer LAl (L = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3) and organic azides (RN3, R = C10H15 (adamantyl), Ph3Si; tBuSi(N3)3) are reported. LAl reacted with the bulky a...

Published
2005

3. Lewis Base Character of Hydroxygermylenes for the Preparation of Heterobimetallic LGe(OH)M Systems (M = Fe, Mn, L = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3)

Author

‡ Juan F. Colunga-Valladares, Leslie W. Pineda, Vojtech Jancik, and Anja Hofmeister, Jörg Magull, and Herbert W. Roesky

Subjects
010405 organic chemistry, Chemistry, Organic Chemistry, chemistry.chemical_element, Manganese, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, 3. Good health, Inorganic Chemistry, Crystallography, Nuclear magnetic resonance, Character (mathematics), Cyclopentadienyl complex, Lewis acids and bases, Physical and Theoretical Chemistry, NAR 2
Abstract

LGeOH (1; L = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3) reacted with iron and manganese complexes to give LGe(OH)Fe(CO)4 (2) and LGe(OH)Mn(Cp)(CO)2 (3; Cp = cyclopentadienyl). Compounds 2 and 3 were characterized by IR, multinuclear NMR, EI-MS, and single-crystal X-ray diffraction.

Published
2006

4. Synthesis of d2 complexes that contain tungsten [W(NAr)2] and rhenium [Re(NAr)2] cores, SCF-X.alpha.-SW calculations, and a discussion of the MCp2/M'(NR)2 isolobal relationship

Author

Mark H. Schofield, Richard R. Schrock, and Darryl S. Williams

Subjects
Stereochemistry, Organic Chemistry, chemistry.chemical_element, Isolobal principle, Crystal structure, Tungsten, Rhenium, Inorganic Chemistry, chemistry.chemical_compound, Crystallography, chemistry, Acetylene, Pyridine, Physical and Theoretical Chemistry, Carbene, NAR 2
Published
1993

5. Methyl Grignard reactions with technetium imide Tc2(NAr)4(.mu.-NAr)2: the imido ligand as a leaving group

Author

Jeffrey C. Bryan and Anthony K. Burrell

Subjects
Stereochemistry, Ligand, Organic Chemistry, Leaving group, chemistry.chemical_element, Crystal structure, Technetium, Chemical reaction, Inorganic Chemistry, chemistry.chemical_compound, Crystallography, chemistry, Physical and Theoretical Chemistry, Imide, Single crystal, NAR 2
Abstract

The reaction of 2 equiv of MeMgCl with Tc{sub 2}(NAr){sub 4}({mu}-NAr){sub 2} (Ar = 2,6-dimethylphenyl) results in displacement of an imido ligand and the formation of TcMe{sub 2}(NAr)({mu}-NAr){sub 2}Tc(NAr){sub 2}. Treatment of TcMe{sub 2-}(NAr)({mu}-NAr){sub 2}Tc(NAr){sub 2}({mu}-NAr){sub 2}Me{sub 4}. Single crystal X-ray determinations of these complexes confirmed the unprecedented substitution of an imido ligand by two methyl groups.

Published
1993

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