The Co-ordination of Small Molecules by Manganese(II) Phosphine Complexes. Part 11. The Co-ordination of Dioxygen By Manganese(II) Complexes containing Long-chain Phosphine Ligands

DOI: 10.1039/DT9880002065

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 2065 - 2070 (1988)

Update date:2022-08-02

Topics:

Authors:

Barratt, David S.

Gott, George A.

Auliffe, Charles A. Mc

Read Full Text PDF DownLoad Join now for total 90,000,000 free articles

Article abstract of DOI:10.1039/DT9880002065

Manganese(II) complexes of long-chain phosphines, , have been prepared.They form highly coloured 1:1 adducts with dioxygen, , in both toluene and tetrahydrofuran (thf) solution.Infrared and e.s.r. spectra strongly suggest that these complexes are pseudotetrahedral dimers in the solid state and in toluene, contrasting vividly with the previously reported structure of .Some molecular weight data indicate the product of dioxygenation in toluene to be the monomeric species.Dioxygen-binding curves for toluene and thf solutions have been obtained and equilibrium constants, K_O2, for the dioxygenation reaction have been deduced.The general observation that K_O2 increases and P₅₀, the partial pressure when 50 percent of sites are deoxygenated, decreases for changes in halide ligand from Cl to Br to I in both solvents mirrors earlier observations with complexes of short-chain phosphines.The affinity of the complexes for O2 in thf is in the order phenyldialkylphosphines < trialkylphosphines.Hill coefficients, n, are approximately 1 for thf solutions of the chloride and bromide complexes, but for the iodides in thf and all of the complexes in toluene n lies in the range 1.10-1.64 indicating co-operativity for O2 binding, which may be related to the dimeric structure proposed for the complexes in toluene.

Full text of DOI:10.1039/DT9880002065

View Article Online / Journal Homepage / Table of Contents for this issue

View Article Online

Products guided by the article

Product name:MnBr₂(P(C₆H₅)(C₁₄H₂₉)2)*O₂=MnBr₂(P(C₆H₅)(C₁₄H₂₉)2)O₂

Cas No:118110-80-8

R&D Labs maybe for 118110-80-8

Huayi Isotopes Co.

Contact:+ 86 512 52491118

Address:1 Fuyu Road, Haiyu TownChangshu, Jiangsu, China
Fuxin Jintelai Fluorin Chemical Co., Ltd.

Contact:+86-0418-8229599

Address:, 7th Huagong Road, Fluorine industry development zone (Yimatu Town,Fumeng County),Fuxin City, Liaoning Province, China
FREEBARQUE DEVELOPMENT GROUP LIMITED

Contact:+86(0)10-5109 5335 or 5109 5345

Address:Room602,Block1-B,LINGDI OFFICE,NO.13 BEIYUAN ROAD
Shandong Jincheng Zhonghua Bio-pharmaceutical Co.,Ltd

Contact:+86-533-5415882

Address:Zichuan Economic Development Zone,Zibo City,Shandong Province,China
Anyang Double Circle Auxiliary CO.,LTD

Contact:0086-134 6082 4403

Address:dongfeng road, anyang city, henan province,china

Relevant to this article

NMR studies of TMS-halide activated organocopper compounds

Doi:10.1016/0022-328X(89)87041-X
(1989)
MANNICH REACTIONS OF OXAZOLIDINES

Doi:10.1016/S0040-4039(00)99485-1
(1989)
Reaction of lithium aluminum hydride with elemental selenium: Its application as a selenating reagent into organic molecules [1]

Doi:10.1021/ja005800o
(2001)
Discovery of VU6027459: A First-in-Class Selective and CNS Penetrant mGlu₇Positive Allosteric Modulator Tool Compound

Doi:10.1021/acsmedchemlett.0c00432
(2020)
THE REACTIVITY OF SULFUR NUCLEOPHILES TOWARDS ARENEDIAZONIUM TETRAFLUOROBORATES IN APROTIC SOLVENTS: SYNTHESIS OF S-ARYL THIOACETATES

Doi:10.1016/S0040-4039(00)80451-7
(1988)
Catalytic enantioselective 1,3-dipolar cycloadditions of alkyl diazoacetates with α,β-disubstituted acroleins

Doi:10.1039/b910321j
(2009)

Article Doi