Transition Metal-Promoted Reactions of Boron Hydrides. 14. A New Synthetic Route to B-Substituted Mono-, Di-, and Trialkylborazines, B-Vinyl-B,B-dialkylborazines, and B-Alkylpolyborazylenes via Rhodium-Catalyzed Borazine/Olefin Hydroboration Reactions

1994 ◽  
Vol 13 (7) ◽  
pp. 2867-2877 ◽  
Author(s):  
Paul J. Fazen ◽  
Larry G. Sneddon
Keyword(s):  
Transition Metal ◽  
Synthetic Route ◽  
Boron Hydrides

Synthesis of an iridium porphyrin amido complex

2011 ◽  
Vol 89 (12) ◽  
pp. 1506-1511 ◽  
Author(s):  
Jenkins Yin Ki Tsang ◽  
Kin Shing Chan
Keyword(s):  
Transition Metal ◽  
Late Transition Metal ◽  
Synthetic Route ◽  
Amido Complexes ◽  
X Ray ◽  
Pyridine Solution ◽  
Aqueous Mixture ◽  
Late Transition ◽  
Established Treatment

A synthetic route for iridium porphyrin amido complexes has been established. Treatment of a THF solution of Ir(ttp)(CO)Cl (1) (ttp = 5,10,15,20-tetrakis(p-tolyl)porphyrinato dianion) with an aqueous mixture of NaOH and NaBH4, followed by 2-iodoethanol leads to the clean formation of the β-hydroxyethyl complex Ir(ttp)(C2H4OH) (2) in 92% yield. Heating a pyridine solution of complex 2 in the presence of ca. 5–10 equiv. of phthalimide (HNC8H4O2; HPhth) leads to the formation of Ir(ttp)(C5H5N)(CH2CH2Phth) (3). The replacement of pyridine by THF as the reaction solvent leads to the formation of the THF adduct Ir(ttp)(THF)(Phth) (4), which has been characterized spectroscopically. Heating a solution of 4 in pyridine leads to the formation of Ir(ttp)(C5H5N)(Phth) (5), which has been isolated in 72% yield. Complexes 3 and 5 have been characterized by X-ray crystallographic studies. Complexes 4 and 5 are rare examples of monomeric late transition metal-amido complexes and are the first examples of iridium-amido complexes featuring a porphyrin as a supporting ligand.

A review of transition-metal boride/phosphide-based materials for catalytic hydrogen generation from hydrolysis of boron-hydrides

2018 ◽  
Vol 5 (4) ◽  
pp. 760-772 ◽  
Author(s):  
Hongming Sun ◽  
Jing Meng ◽  
Lifang Jiao ◽  
Fangyi Cheng ◽  
Jun Chen
Keyword(s):  
Transition Metal ◽  
Hydrogen Generation ◽  
Metal Boride ◽  
Hydrogen Economy ◽  
Boron Hydrides ◽  
Catalytic Hydrogen ◽  
And Storage ◽  
Hydrolysis Of ◽  
Essential Prerequisite

Efficient hydrogen generation and storage is an essential prerequisite of a future hydrogen economy.

scholarly journals A Simple, General Synthetic Route toward Nanoscale Transition Metal Borides

2018 ◽  
Vol 30 (14) ◽  
pp. 1704181 ◽  
Author(s):  
Palani R. Jothi ◽  
Kunio Yubuta ◽  
Boniface P. T. Fokwa
Keyword(s):  
Transition Metal ◽  
Synthetic Route ◽  
Metal Borides
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