Synthesis and Characterisation of 1,2-Bis(dimethylphosphino)ethane (dmpe) Complexes of Chromium-(0) and -(IV): X-Ray Crystal Structures of trans-Cr(N2)2(dmpe)2, cis-Cr(CO)2(dmpe)2, Cr(C2Ph2)2(dmpe), and CrH4(dmpe)2

DOI: 10.1039/DT9850000685

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 685 - 692 (1985)

Update date:2022-08-04

Topics:

Authors:

Salt, Julian E.

Girolami, Gregory S.

Wilkinson, Geoffrey

Motevalli, Majid

Thornton-Pett, Mark

Hursthouse Michael B.

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

Article abstract of DOI:10.1039/DT9850000685

The reduction of trans-CrCl2(dmpe)2 in tetrahydrofuran by sodium amalgam under dinitrogen leads to the complex trans-Cr(N2)2(dmpe)2, under carbon monoxide to the known cis-Cr(CO)2(dmpe)2, and in presence of Bu^tNC to trans-Cr(CNBu^t)2(dmpe)2.Interaction of trans-Cr(N2)2(dmpe)2 with ethylene, buta-1,3-diene, diphenylacetylene, and hydrogen (under irradiation) gives, respectively, trans-Cr(C2H4)2(dmpe)2, cis-Cr(η⁴-C4H6)(dmpe)2, Cr(PhCCPh)2(dmpe), and CrH4(dmpe)2.Infrared and nuclear magnetic resonance spectra are reported together with X-ray crystal structures of four of the complexes.The trans-bis(dinitrogen) complex is centrosymmetric with octahedral geometry and Cr-N and Cr-P distances of 1.874(3) and 2.296(1) Angstroem, respectively.The N-N bond lenght, 1.122(3) Angstroem, is normal.The cis-dicarbonyl complex is also octahedral with a Cr-C distance of 1.812(6) Angstroem; the Cr-P distances are different at 2.343(3) Angstroem trans to CO and 2.278(3) Angstroem trans to P, reflecting large differences in thrans influence between CO and phosphine.The diphenylacetylene complex has ?-bonded acetylene groups with Cr-C distances in the range 1.886(5)-1.980(5) Angstroem and a chelating dmpe ligand, with Cr-P distances of 2.280(3), 2.298(3) Angstroem.The chromium(IV) hydride has a dodecahedral structure with phosphines occupying the B sites and the hydrogen atoms the A sites .

Full text of DOI:10.1039/DT9850000685

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

View Article Online

Products guided by the article

Product name:1,2-bis(dimethylphosphino)ethanebis(diphenylacetylene)chromium⁽⁰⁾

Cas No:97333-57-8

R&D Labs maybe for 97333-57-8

Xuzhou Tianrun Chemical Co.,Ltd

website:http://www.tianrunchem.cn

Contact:86-516-83832636

Address:fuxing road
Zhejiang Hoshine Silicon Industry Co., Ltd.

Contact:86-573-89179966

Address:Zhapu Town, Pinghu City, Zhejiang, China
RongCheng K&S Chemical Co.,Ltd

Contact:0631-7336369

Address:rongcheng ,shandong province china
Daicel Chiral Technologies (China)CO.,LTD

Contact:021-5046-0086*8

Address:Part C, FL 5, the 16th Building, No. 69, XiYa Road, WaiGaoQiao Free Trade Zone, Shanghai, 200131, P.R.China
Suzhou Jingye Medicine & Chemical Co., Ltd

Contact:+86-512-66658588

Address:No. 88, Sanlian Street, Jinfeng Road, Suzhou New District, Jiangsu Province, P. R. China

Relevant to this article

IDENTIFICATION OF THE PRODUCTS OF PERIODATE OXIDATION OF SOME MONO-O-ISOPROPYLIDENE DERIVATIVES OF ALDOSES AND ALDITOLS BY G.L.C.-M.S.

Doi:10.1016/0008-6215(85)85116-8
(1985)
Isoindolinone Synthesis: Selective Dioxane-Mediated Aerobic Oxidation of Isoindolines

Doi:10.1021/acs.joc.8b01920
(2019)
Doi:10.1021/jo01091a627
(1959)
Enantioselective synthesis of 7H-pyrano[2,3-d]thiazoles via squaramide-catalyzed [2+4] annulation of malononitrile and 5-ylidenethiazol-4-ones

Doi:10.1016/j.tetasy.2016.08.014
(2016)
Doi:10.1046/j.1532-5415.2002.50036.x
(1956)
Studies on uracil derivatives and analogs; VII. Synthesis of N¹-iodomethyl derivatives of uracil and dihydrouracil

Doi:10.1055/s-1985-31199
(1985)

Article Doi