1361399-35-0Relevant academic research and scientific papers
The role of neutral Rh(PONOP)H, free NMe2H, boronium and ammonium salts in the dehydrocoupling of dimethylamine-borane using the cationic pincer [Rh(PONOP)(η2-H2)]+ catalyst
Spearing-Ewyn, E. Anastasia K.,Beattie, Nicholas A.,Colebatch, Annie L.,Martinez-Martinez, Antonio J.,Docker, Andrew,Boyd, Timothy M.,Baillie, Gregg,Reed, Rachel,Macgregor, Stuart A.,Weller, Andrew S.
, p. 14724 - 14736 (2019/10/16)
The σ-amine-borane pincer complex [Rh(PONOP)(η1-H3B·NMe3)][BArF4] [2, PONOP = κ3-NC5H3-2,6-(OPtBu2)2] is prepared by addition of Hsub
Dihydrogen complexes of iridium and rhodium
Findlater, Michael,Schultz, Katherine M.,Bernskoetter, Wesley H.,Cartwright-Sykes, Alison,Heinekey, D. Michael,Brookhart, Maurice
, p. 4672 - 4678 (2012/05/20)
A series of iridium and rhodium pincer complexes have been synthesized and characterized: [(POCOP)Ir(H)(H2)] [BArf4] (1-H3), (POCOP)Rh(H2) (2-H2), [(PONOP)Ir(C 2H4)] [BArf4] (3-C2H 4), [(PONOP)Ir(H)2)] [BArf4] (3-H2), [(PONOP)Rh(C2H4)] [BArf 4] (4-C2H4) and [(PONOP)Rh(H2)] [BArf4] (4-H2) (POCOP = I3-C 6H3-2,6-[OP(tBu)2]2; PONOP = 2,6-(tBu2PO)2C5H3N; BAr f4 = tetrakis(3,5-trifluoromethylphenyl)borate). The nature of the dihydrogen-metal interaction was probed using NMR spectroscopic studies. Complexes 1-H3, 2-H2, and 4-H2 retain the H-H bond and are classified as η2-dihydrogen adducts. In contrast, complex 3-H2 is best described as a classical dihydride system. The presence of bound dihydrogen was determined using both T1 and 1JHD coupling values: T1 = 14 ms, 1JHD = 33 Hz for the dihydrogen ligand in 1-H3, T1(min) = 23 ms, 1JHD = 32 Hz for 2-H 2, T1(min) = 873 ms for 3-H2, T 1(min) = 33 ms, 1JHD = 30.1 Hz for 4-H 2.
