1361399-33-8

Upstream product

• 74-85-1 ethene 
• 1200444-83-2 Rh[C₅H₃N-2,6-(OP^tBu₂)₂]Cl 
• 79060-88-1 sodium tetrakis[(3,5-di-trifluoromethyl)phenyl]borate 

Downstream Products

• 1361399-35-0 [(2,6-(t-Bu₂PO)2C₅H₃N)Rh(H₂)][tetrakis(3,5-bis(trifluoromethyl)phenyl)borate] 

Relevant academic research and scientific papers

Dihydrogen complexes of iridium and rhodium

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.