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Greer SM, Üngor Ö, Beattie RJ, Kiplinger JL, Scott BL, Stein BW, Goodwin CAP. Low-spin 1,1'-diphosphametallocenates of chromium and iron. Chem Commun (Camb) 2021; 57:595-598. [PMID: 33338086 DOI: 10.1039/d0cc06518h] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report two anionic diphosphametallocenates, [K(2.2.2-crypt)][M(PC4Me4)2] (M = Cr, 2-Cr; Fe, 2-Fe). Both are low-spin (S = ½) by EPR spectroscopy and SQUID magnetometry. This contrasts the high-spin (S = 3/2) ferrocenate, [K(2.2.2-crypt)][Fe(C5H2-1,2,4-tBu)2] (4-Fe). Quantum chemical calculations suggest this is due to significant differences in ligand field splitting of the d-orbitals which also explain structural features in the 2-M complexes.
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Affiliation(s)
- Samuel M Greer
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. and National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA and Department of Chemistry & Biochemistry, Florida State University, Tallahassee, FL 32306, USA
| | - Ökten Üngor
- National High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310, USA
| | - Ross J Beattie
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
| | | | - Brian L Scott
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
| | - Benjamin W Stein
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
| | - Conrad A P Goodwin
- Chemistry Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA. and Department of Chemistry, School of Natural Sciences, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK
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Xu L, Chi Y, Du S, Zhang W, Xi Z. Direct Synthesis of Phospholyl Lithium from White Phosphorus. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201602790] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ling Xu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of ChemistryPeking University Beijing 100871 China
| | - Yue Chi
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of ChemistryPeking University Beijing 100871 China
| | - Shanshan Du
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of ChemistryPeking University Beijing 100871 China
| | - Wen‐Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of ChemistryPeking University Beijing 100871 China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 P.R. China
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of ChemistryPeking University Beijing 100871 China
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3
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Xu L, Chi Y, Du S, Zhang WX, Xi Z. Direct Synthesis of Phospholyl Lithium from White Phosphorus. Angew Chem Int Ed Engl 2016; 55:9187-90. [PMID: 27304553 DOI: 10.1002/anie.201602790] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2016] [Indexed: 11/09/2022]
Abstract
The selective construction of P-C bonds directly from P4 and nucleophiles is an ideal and step-economical approach to utilizing elemental P4 for the straightforward synthesis of organophosphorus compounds. In this work, a highly efficient one-pot reaction between P4 and 1,4-dilithio-1,3-butadienes was realized, which quantitatively affords phospholyl lithium derivatives. DFT calculations indicate that the mechanism is significantly different from that of the well-known stepwise cleavage of P-P bond in P4 activation. Instead, a cooperative nucleophilic attack of two Csp2 Li bonds on P4 , leading to simultaneous cleavage of two P-P bonds, is favorable. This mechanistic information offers a new view on the mechanism of P4 activation, as well as a reasonable explanation for the excellent yields and selectivity. This method could prove to be a useful route to P4 activation and the subsequent production of organophosphorus compounds.
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Affiliation(s)
- Ling Xu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
| | - Yue Chi
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
| | - Shanshan Du
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
| | - Wen-Xiong Zhang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China. .,State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin, 300071, P.R. China.
| | - Zhenfeng Xi
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China
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Huang C, Hao Y, Zhao Y, Zhu J. Computations Offer an Unconventional Route to Metallaphosphabenzene from a Half-Phosphametallocene. Organometallics 2014. [DOI: 10.1021/om401188v] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chao Huang
- Department of Chemistry, College of Chemistry
and Chemical Engineering, and the Key Laboratory for Chemical Biology
of Fujian Province, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yulei Hao
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical
and Computational Chemistry and Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yufen Zhao
- Department of Chemistry, College of Chemistry
and Chemical Engineering, and the Key Laboratory for Chemical Biology
of Fujian Province, Xiamen University, Xiamen 361005, People’s Republic of China
- Key Lab of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, People’s Republic of China
| | - Jun Zhu
- State Key Laboratory of Physical Chemistry
of Solid Surfaces, Fujian Provincial Key Laboratory of Theoretical
and Computational Chemistry and Department of Chemistry, College of
Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
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Carmichael D, le Goff XF, Muller E, Ricard L, Stankevič M. Diastereoselective synthesis and coordination chemistry of enantiopure keto-bis-(2-phosphametallocene)s. Dalton Trans 2012; 41:5155-62. [PMID: 22395340 DOI: 10.1039/c2dt11647b] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantiopure 2-(chlorocarbonyl)phosphametallocenes [MCp*(2-{COCl}-3,4-Me(2)-5-Ph-PC(4))] (M = Fe, Ru) react with phospholide anions to give 2-phosphametallocene-2'-acylphospholides K[MCp*(2-CO-2'-{3',4'-Me(2)-5'-PhPC(4)}-3,4-Me(2)-5-Ph-PC(4))] (M = Fe, Ru) and these have been converted into keto-bis-(2-phosphametallocene)s through reaction with [FeClCp*(tmeda)]; templation of this process with CuBr gives rise to the C(2)- (or pseudo-C(2)- when M = Ru) symmetric form of [{MCp*(3,4-Me(2)-5-Ph-PC(4))}(2)-2,2'-(CO)] (M = Fe, Ru; Fe, Fe) with high (>95%) diastereoselectivity. X-Ray structures of these ligands coordinated to [RuCp*Cl] and [PtCl(2)] centres show that the spatial orientation of the very flexible keto-bis-(2-phosphametallocene) structure is highly responsive to the coordination sphere of the chelated platinum or ruthenium centre.
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Affiliation(s)
- Duncan Carmichael
- Laboratoire Hétéroéléments et Coordination Ecole Polytechnique, CNRS, 91128, Palaiseau cedex, France.
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Ogasawara M, Ogura M, Sakamoto T, Watanabe S, Arae S, Nakajima K, Takahashi T. Homoannular Double Friedel–Crafts Acylation of Phosphametallocenes. Organometallics 2011. [DOI: 10.1021/om200678q] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Masamichi Ogasawara
- Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Morihiko Ogura
- Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Takeshi Sakamoto
- Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Susumu Watanabe
- Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Sachie Arae
- Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
| | - Kiyohiko Nakajima
- Department of Chemistry, Aichi University of Education, Igaya, Kariya, Aichi, 448-8542, Japan
| | - Tamotsu Takahashi
- Catalysis Research Center and Graduate School of Life Science, Hokkaido University, Kita-ku, Sapporo 001-0021, Japan
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