Author: Tiow-Gan Ong
Publisher:
ISBN:
Category :
Languages : en
Pages : 466
Book Description
The Synthesis, Characterization and Reactivity of High Oxidation State Rhenium Imido and Oxo Complexes
Synthesis, Characterization, and Reactivity of Technetium and Rhenium Complexes in Intermediate Oxidation States
Author: Harvey Stewart Trop
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 482
Book Description
Publisher:
ISBN:
Category : Chemical reactions
Languages : en
Pages : 482
Book Description
Synthesis, Structure and Reactivity Studies of High Oxidation-state Rhenium-oxo Complexes
Author: Shi'ang Cai
Publisher:
ISBN:
Category : Complex compounds
Languages : en
Pages : 400
Book Description
Publisher:
ISBN:
Category : Complex compounds
Languages : en
Pages : 400
Book Description
Synthesis, Characterization and Reactivity of Rhenium(I) Tris(acetylene) and Oxo Bis(acetylene) Complexes; Oxygen Atom Transfer Reactions of Rhenium Triazacyclononane Compounds
Author: Rebecca Renae Conry
Publisher:
ISBN:
Category : Oxo compounds
Languages : en
Pages : 174
Book Description
Publisher:
ISBN:
Category : Oxo compounds
Languages : en
Pages : 174
Book Description
Synthesis, Characterization, and Reactivity of Low-valent Rhenium Oxo-alkoxide and Hydride Complexes
Author: Torsten K. G. Erikson
Publisher:
ISBN:
Category : Rhenium compounds
Languages : en
Pages : 258
Book Description
Publisher:
ISBN:
Category : Rhenium compounds
Languages : en
Pages : 258
Book Description
Synthesis, Characterization and Reactivity of Rhenium(III) Complexes for Catalytic, Stoichiometric and Insertion Reactions
Author: Damaris Esther Pérez
Publisher:
ISBN:
Category :
Languages : en
Pages : 123
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 123
Book Description
Synthesis, Spectroscopic Characterization and Reactivity of the High-valent Metal-oxo/imido Cores of the Late Transition Metals
Author: Subrata Kundu
Publisher:
ISBN:
Category :
Languages : en
Pages : 225
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 225
Book Description
Syntheses, Characterization, Electrochemistry and Photochemical Properties of Some High-Valent Oxo and Imido Complexes of Osmium and Rhenium
Author: 鄭郁棋
Publisher:
ISBN: 9781374773196
Category :
Languages : en
Pages :
Book Description
This dissertation, "Syntheses, Characterization, Electrochemistry and Photochemical Properties of Some High-valent Oxo and Imido Complexes of Osmium and Rhenium" by 鄭郁棋, Yuk-ki, Cheng, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b3123563 Subjects: Rhenium compounds Osmium compounds Electrochemistry Photochemistry
Publisher:
ISBN: 9781374773196
Category :
Languages : en
Pages :
Book Description
This dissertation, "Syntheses, Characterization, Electrochemistry and Photochemical Properties of Some High-valent Oxo and Imido Complexes of Osmium and Rhenium" by 鄭郁棋, Yuk-ki, Cheng, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b3123563 Subjects: Rhenium compounds Osmium compounds Electrochemistry Photochemistry
Syntheses, Characterization, Electrochemistry and Photochemical Properties of Some High-valent Oxo and Imido Complexes of Osmium and Rhenium
Author: Yuk-ki Cheng
Publisher:
ISBN:
Category : Electrochemistry
Languages : en
Pages : 444
Book Description
Publisher:
ISBN:
Category : Electrochemistry
Languages : en
Pages : 444
Book Description
Synthesis, Characterization, and Reactivity of Rhenium Dithiodiolate and Monothiodiolate Complexes
Author: Pitak Chuawong
Publisher:
ISBN:
Category : Organorhenium compounds
Languages : en
Pages : 190
Book Description
The rhenium dithiodiolate, Hydrido-tris-(3,5-dimethyl- 1 -pyrazol yl) borato(ethane- 1,2-dithiodiolato)(oxo)rheni um(V), and Hydrido-tris-(3,5-dimethyl- 1 -pyrazolyl)borato(phenylethanedithiodiolato)(oxo)rhenium(V), were synthesized by reductive cyclocondensation of alkane-1,2-dithiols with Tp'Re03 in a one pot fashion. The rhemium monothiodiolate, Hydrido-tris-(3,5-dimethyl- 1 -pyrazolyl) borato(ethane- 1,2-monothiodiolato)(oxo)rhenium(V), and Hydrido-tris-(3,5- dimethyl- 1 -pyrazolyl)borato(propanemonothiodiolato)(oxo)rhenium(V), were also synthesized by using the same procedure. The syn and anti isomers of rhenium phenylethanedithiodiolate and rhenium propanemonothiodiolate were characterized by using COSY, nOe, and HSQC experiments. An X-ray crystal structure of the rhenium ethanedithiodiolate was obtained, and an unusually small dihedral angle (S-C-C-S) of about 12° was observed. The solution conformation of these compounds was investigated by using a Karplus relationship between vicinal coupling constants and dihedral angle. The dihedral angle for the ethanedithiodiolate appeared to be 38° indicating a staggered geometry for the ring. All of these complexes failed to cyclorevert to any detectable extent at 120°C after 7 days. This observation reflects the thermal stability of rhenium dithiodiolate and monothiodiolate complexes. Energetics of ethylene addition to tetrathioperrhenate anion (ReS4−) and addition of hydrogen sulfide to the alkene adduct were calculated by DFT calculation using LACVP** basis set with B3LYP functionals. The heat of reaction of ethylene addition to ReS4− was 15.4 kcal/mol, and 111.1 kcal/mol for addition of hydrogen sulfide to the alkene adduct. These results are consistent with the stability of the dithiodiolate complex toward cycloreversion reaction. Reaction of Tp'Re03 and ethylene sulfide led to the rhenium ethanedithiolate complex both with and without acid catalysis. This observation led to a proposed multi step mechanism.
Publisher:
ISBN:
Category : Organorhenium compounds
Languages : en
Pages : 190
Book Description
The rhenium dithiodiolate, Hydrido-tris-(3,5-dimethyl- 1 -pyrazol yl) borato(ethane- 1,2-dithiodiolato)(oxo)rheni um(V), and Hydrido-tris-(3,5-dimethyl- 1 -pyrazolyl)borato(phenylethanedithiodiolato)(oxo)rhenium(V), were synthesized by reductive cyclocondensation of alkane-1,2-dithiols with Tp'Re03 in a one pot fashion. The rhemium monothiodiolate, Hydrido-tris-(3,5-dimethyl- 1 -pyrazolyl) borato(ethane- 1,2-monothiodiolato)(oxo)rhenium(V), and Hydrido-tris-(3,5- dimethyl- 1 -pyrazolyl)borato(propanemonothiodiolato)(oxo)rhenium(V), were also synthesized by using the same procedure. The syn and anti isomers of rhenium phenylethanedithiodiolate and rhenium propanemonothiodiolate were characterized by using COSY, nOe, and HSQC experiments. An X-ray crystal structure of the rhenium ethanedithiodiolate was obtained, and an unusually small dihedral angle (S-C-C-S) of about 12° was observed. The solution conformation of these compounds was investigated by using a Karplus relationship between vicinal coupling constants and dihedral angle. The dihedral angle for the ethanedithiodiolate appeared to be 38° indicating a staggered geometry for the ring. All of these complexes failed to cyclorevert to any detectable extent at 120°C after 7 days. This observation reflects the thermal stability of rhenium dithiodiolate and monothiodiolate complexes. Energetics of ethylene addition to tetrathioperrhenate anion (ReS4−) and addition of hydrogen sulfide to the alkene adduct were calculated by DFT calculation using LACVP** basis set with B3LYP functionals. The heat of reaction of ethylene addition to ReS4− was 15.4 kcal/mol, and 111.1 kcal/mol for addition of hydrogen sulfide to the alkene adduct. These results are consistent with the stability of the dithiodiolate complex toward cycloreversion reaction. Reaction of Tp'Re03 and ethylene sulfide led to the rhenium ethanedithiolate complex both with and without acid catalysis. This observation led to a proposed multi step mechanism.