65420-68-0 Usage
Description
1,5-BIS(DI-T-BUTYLPHOSPHINO)PENTANE is a phosphine ligand with a pentane backbone and two di-t-butylphosphino groups attached at the 1,5 positions. It is known for its strong electron-donating ability and steric bulk, making it a versatile ligand in various chemical reactions and applications.
Uses
Used in Coordination Chemistry:
1,5-BIS(DI-T-BUTYLPHOSPHINO)PENTANE is used as a ligand for the preparation of transition metal complexes, particularly those involving iridium. Its strong electron-donating ability and steric properties contribute to the stability and reactivity of the resulting complexes.
Used in Catalysis:
1,5-BIS(DI-T-BUTYLPHOSPHINO)PENTANE is used as a ligand in homogeneous catalysis, where it can enhance the activity and selectivity of catalytic systems. Its steric and electronic properties can fine-tune the catalytic performance, making it suitable for various reactions, such as hydrogenation, hydroformylation, and C-C bond formation.
Used in the Preparation of Iridium Compounds:
1,5-BIS(DI-T-BUTYLPHOSPHINO)PENTANE is used as a ligand in the preparation of an iridium compound capable of oxidatively adding ammonia to form a stable, monomeric amido hydride complex. This application showcases its ability to stabilize unique metal-ligand interactions and facilitate challenging chemical transformations.
Check Digit Verification of cas no
The CAS Registry Mumber 65420-68-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,4,2 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 65420-68:
(7*6)+(6*5)+(5*4)+(4*2)+(3*0)+(2*6)+(1*8)=120
120 % 10 = 0
So 65420-68-0 is a valid CAS Registry Number.
InChI:InChI=1S/C21H46P2/c1-18(2,3)22(19(4,5)6)16-14-13-15-17-23(20(7,8)9)21(10,11)12/h13-17H2,1-12H3
65420-68-0Relevant articles and documents
Isolation and X-ray structures of four Rh(PCP) complexes including a Rh(I) dioxygen complex with a short O-O bond
Hayashi, Yukiko,Szalda, David J.,Grills, David C.,Hanson, Jonathan C.,Huang, Kuo-Wei,Muckerman, James T.,Fujita, Etsuko
, p. 106 - 114 (2013)
The reaction of RhCl3·H2O with tBu2P(CH2)5PtBu 2 afforded several complexes including [RhIII(H)Cl{ tBu2- P(CH2)2CH(CH2) 2PtBu2}] (1), [RhIIIHCl 2{tBu2P(CH2)5P tBu2}]2 (2), [RhICl{ tBu2P(CH2)2CH=CHCH2P tBu2}] (3) and [RhICl{tBu 2PCH2C(O)CH=CHCH2PtBu2}] (4). X-ray crystal structures of 3 and 4 showed that the C=C bond on the C 5 unit of tBu2P(CH2) 5PtBu2 is bound to Rh(I) in a η2 configuration. In 4, the Rh atom has a trigonal pyramidal coordination geometry. The X-ray crystal structure of 2 consists of two rhodium( III) centers bridged by two tBu2P(CH2)5P tBu2 ligands with two phosphorus atoms, one from each ligand, trans to one another. The crystal structure of the rhodium oxygen adduct with 1,3-bis(di-t-butylphosphinomethyl) benzene [RhO2{ tBu2PCH2(C6H3)CH 2PtBu2}] (5) was also investigated. In this species the O2 is η2 coordinated to the Rh(I) center with asymmetric Rh-O bond lengths (2.087(7) and 1.998(8) A?). The O-O bond distance is short (1.337(11) A?) with νO-O of 990.5 cm -1. DFT calculations on complex 5 yielded two η2- O2 structures that differed in energy by only 0.76 kcal/mol. The lower energy one (5a) had near C2 symmetry, and had nearly equal Rh-O bond lengths, while the higher energy structure (5b) had near Cs symmetry and generally good agreement with the experimental structure. The calculated UV-Vis and IR spectra of complex 5 are in excellent agreement with experiment.