Chemical Transformations and Facile Disproportionation of Sulfur Dioxide on Transition Metal Complexes

1994 ◽  
Vol 27 (7) ◽  
pp. 183-190 ◽  
Author(s):  
Gregory J. Kubas
Keyword(s):  
Sulfur Dioxide ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Chemical Transformations

scholarly journals RECENTES APLICAÇÕES DO ORGANOFOTOCATALISADOR 1,2,3,5-TETRAQUIS(CARBAZOL-9-IL)-4,6- DICIANOBENZENO EM TRANSFORMAÇÕES QUÍMICAS

Química Nova ◽  
2020 ◽  
Author(s):  
Lucas Pugnal ◽  
Emanuele Pissinati ◽  
Karina Quaglio ◽  
Márcio Paixão
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Chemical Transformations ◽  
Redox Potentials ◽  
Research Groups ◽  
Organic Fluorophores ◽  
Metal Free ◽  
Polypyridine Complexes ◽  
Distinguished Research

RECENT APPLICATIONS OF THE ORGANIC PHOTOCATALYST 1,2,3,5-TETRAKIS(CARBAZOL-9-YL)- 4,6-DICIANOBENZENE IN CHEMICAL TRANSFORMATIONS. Ruthenium and iridium polypyridine complexes are among the most employed photocatalysts described in literature. The broad applicability is due to the redox potentials and long half-life times of the excited state which these molecules presented. The pursuit for metal-free alternatives has been intensified in the last few years, therefore, many organic fluorophores were successfully employed as photocatalysts. Among them, 1,2,3,5-tetrakis(carbazol-9-yl)- 4,6-dicianobenzene (4CzIPN) recently drawn attention of the community, and it’s been widely employed by distinguished research groups. Recent studies have shown that this catalyst do not only present similar properties to transition metal complexes, but also, its synthesis can be accomplished more easily and less expensive when compared with the metallic photocatalysts above mentioned. Therefore, 4CzIPN constitutes a metal-free alternative to replace transition metal complexes in conventional photochemical protocols. Moreover, it’s as a powerful ally in the development of new photochemical approaches. In this work, we aim to summarize recent applications of 4CzIPN as catalyst in the emerging field of redox photocatalysis.

Recent advances in well-defined, late transition metal complexes that make and/or break C–N, C–O and C–S bonds

2017 ◽  
Vol 46 (1) ◽  
pp. 197-238 ◽  
Author(s):  
Addison N. Desnoyer ◽  
Jennifer A. Love
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Late Transition Metal ◽  
Chemical Transformations ◽  
Recent Advances ◽  
Late Transition

Chemical transformations that result in either the formation or cleavage of carbon–heteroatom bonds are among the most important processes in the chemical sciences.

scholarly journals Synthesis and Structure of Aryl Phosphorus Compounds

2020 ◽  
Vol 12 (4) ◽  
pp. 5-50
Author(s):  
A. Zykova ◽  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Organophosphorus Compounds ◽  
Structural Features ◽  
Phosphorus Compounds ◽  
Chemical Transformations ◽  
State University ◽  
Late 20Th Century ◽  
Classical Studies

Based on an analysis of the literature published from the late 20th century to the beginning of the 21st century, methods for the synthesis of some complex tetraorganylphosphonium salts are systematized and described, along with the features of the chemical transformations of pentaphenylphosphorus, which was first obtained in 1953. The tetraorganylphosphonium salts were known much earlier, however, the features of the synthesis of transition metal complexes, which are usually obtained from tetraorganylphosphorus halides and metal halides, have not been sufficiently studied. The present review is devoted to the discussion of these topics, since the famous Wittig Reaction is associated with aryl phosphorus compounds, which allows synthesizing alkenes of a given structure, and derivatives of transition metals rightfully occupy a special place among catalysts of various chemical processes. The continuation of these classical studies in the field of chemistry of organoelemental compounds takes place at one of the leading universities in Russia - South Ural State University in the laboratory of chemistry of organoelemental compounds at the Faculty of Chemistry. This article aims at familiarizing the reader with the achievements of Professor V.V. Sharutin and his students in the field of organophosphorus compounds. The main attention is paid to the reactions of pentaphenylphosphorus and its derivatives, as well as methods for the synthesis of ionic complexes of silver, gold, copper, titanium, zirconium, hafnium, ruthenium, osmium, cobalt, rhodium, iridium, palladium and platinum with tetraorganylphosphonium cations. The structural features of the described compounds and the possibility of using transition metal complexes in some catalytic reactions are described.

New mode of sulfur dioxide attachment to halogenated transition metal complexes

1972 ◽  
Vol 94 (7) ◽  
pp. 2526-2528 ◽  
Author(s):  
M. R. Snow ◽  
J. McDonald ◽  
F. Basolo ◽  
James A. Ibers
Keyword(s):  
Sulfur Dioxide ◽  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes

Mechanochemical changes on cyclometalated Ir(iii) acyclic carbene complexes – design and tuning of luminescent mechanochromic transition metal complexes

2020 ◽  
Vol 7 (3) ◽  
pp. 786-794 ◽  
Author(s):  
Jingqi Han ◽  
Kin-Man Tang ◽  
Shun-Cheung Cheng ◽  
Chi-On Ng ◽  
Yuen-Kiu Chun ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Complexes ◽  
Transition Metal Complexes ◽  
Carbene Complexes ◽  
New Class

A new class of luminescent cyclometalated Ir(iii) complexes with readily tunable mechanochromic properties derived from the mechanically induced trans-to-cis isomerization have been developed.

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