(Diphenylphosphino)-biheteroaryls: the first example of a new class of chiral atropisomeric chelating diphosphine ligands for transition metal catalysed stereoselective reactions

1995 ◽  
pp. 685-686 ◽  
Author(s):  
Tiziana Benincori ◽  
Elisabetta Brenna ◽  
Franco Sannicolò ◽  
Licia Trimarco ◽  
Patrizia Antognazza ◽  
...  
Keyword(s):  
Transition Metal ◽  
Diphosphine Ligands ◽  
New Class ◽  
Stereoselective Reactions

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.

New Class of Diluted Ferromagnetic Semiconductors based on CaO without Transition Metal Elements

2004 ◽  
Vol 43 (No. 7A) ◽  
pp. L934-L936 ◽  
Author(s):  
Kazuhide Kenmochi ◽  
Masayoshi Seike ◽  
Kazunori Sato ◽  
Akira Yanase ◽  
Hiroshi Katayama-Yoshida
Keyword(s):  
Transition Metal ◽  
Ferromagnetic Semiconductors ◽  
Metal Elements ◽  
New Class ◽  
Transition Metal Elements

Manganese-centered tubular boron cluster – MnB16−: A new class of transition-metal molecules

2016 ◽  
Vol 144 (15) ◽  
pp. 154310 ◽  
Author(s):  
Tian Jian ◽  
Wan-Lu Li ◽  
Ivan A. Popov ◽  
Gary V. Lopez ◽  
Xin Chen ◽  
...  
Keyword(s):  
Transition Metal ◽  
Boron Cluster ◽  
New Class ◽  
Transition Metal Molecules

Light-Mediated Cross-Coupling of Anomeric Trifluoroborates

2021 ◽  
Author(s):  
Eric Miller ◽  
Maciej Walczak
Keyword(s):  
Cross Coupling ◽  
Hydroxyl Groups ◽  
Anomeric Effect ◽  
Computational Studies ◽  
Carbohydrate Chemistry ◽  
New Class ◽  
Free Hydroxyl ◽  
Anomeric Carbon ◽  
Stereoselective Reactions

Stereoselective reactions at the anomeric carbon constitute the cornerstone of preparative carbohydrate chemistry. Here, we report the synthesis of axial C1 trifluoroborates and stereoselective C-arylation and etherification reactions under photoredox conditions. These reactions are characterized by high anomeric selectivities for 2-deoxysugars and broad substrate scope (24 examples), including disaccharides and trifluoroborates with free hydroxyl groups. Computational studies show that high axial selectivities for these reactions originate from a combination of kinetic anomeric effect of the intermediate C1 radical and stereoelectronic stabilization of Ni(III) through the metallo-anomeric effect. Taken together, this new class of carbohydrate reagents adds the palette of anomeric nucleophile reagents suitable for efficient installation C-C and Cheteroatom bonds.

[(?6-B6X)2M] (X=C, N; M=Mn, Fe, Co, Ni): A New Class of Transition-Metal Sandwich-Type Complexes

2005 ◽  
Vol 117 (14) ◽  
pp. 2196-2199 ◽  
Author(s):  
Si-Dian Li ◽  
Jin-Chang Guo ◽  
Chang-Qing Miao ◽  
Guang-Ming Ren
Keyword(s):  
Transition Metal ◽  
New Class ◽  
Sandwich Type
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