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Crumpton AE, Heilmann A, Aldridge S. Modulating Hydrogen Shuttling in Ammonia by Neutral and Cationic Boron-Containing Frustrated Lewis Pairs (FLPs). Angew Chem Int Ed Engl 2024:e202406440. [PMID: 38818696 DOI: 10.1002/anie.202406440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/01/2024]
Abstract
Xanthene-backbone FLPs featuring secondary borane functions -B(ArX)H (where ArX=C6F5 (ArF) or C6Cl5 (ArCl)) have been targeted through reactions of the dihydroboranes Me2S ⋅ BArXH2 with [4,5-xanth(PR2)Li]2 (R=Ph, iPr), and investigated in the synthesis of related cationic systems via hydride abstraction. The reactivity of these systems (both cationic and charge neutral) with ammonia have been probed, with a view to probing the potential for proton shuttling via N-H bond 'activation.' We find that in the case of four-coordinate boron systems (cationic or change neutral), the N-H linkage remains intact, supported by a NH⋅⋅⋅P hydrogen bond which is worth up to 17 kcal mol-1 thermodynamically, and enabled by planarization of the flexible xanthene scaffold. For cationic three coordinate systems, N-to-P proton transfer is viable, driven by the ability of the boron centre to stabilise the [NH2]- conjugate base through N-to-B π bonding. This proton transfer can be shown to be reversible in the presence of excess ammonia, depending on the nature of the B-bound ArX group. It is viable in the case of C6F5 substituents, but is prevented by the more sterically encumbering and secondary donor-stabilising capabilities of the C6Cl5 substituent.
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Affiliation(s)
- Agamemnon E Crumpton
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Andreas Heilmann
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
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Durran SE, Elsegood MRJ, Noble TA, Smith MB, Gelbrich T, Hursthouse MB, Light ME. Synthesis and Characterisation of Transition Metal Complexes of a Novel 1,5‐benzodiazepine‐Functionalised Tertiary Phosphine. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sean E. Durran
- Department of Chemistry Loughborough University Loughborough LE11 3TU UK
| | | | - Thomas A. Noble
- Department of Chemistry Loughborough University Loughborough LE11 3TU UK
| | - Martin B. Smith
- Department of Chemistry Loughborough University Loughborough LE11 3TU UK
| | - Thomas Gelbrich
- UK National Crystallography Service School of Chemistry University of Southampton Highfield Southampton S017 1BJ UK
| | - Michael B. Hursthouse
- UK National Crystallography Service School of Chemistry University of Southampton Highfield Southampton S017 1BJ UK
| | - Mark E. Light
- UK National Crystallography Service School of Chemistry University of Southampton Highfield Southampton S017 1BJ UK
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Elsegood MRJ, Lake AJ, Smith MB, Weaver GW. Ditertiary phosphines bearing a –N–C–C(O)–N(H)– linker and their corresponding dichloroplatinum(II) complexes. PHOSPHORUS SULFUR 2019. [DOI: 10.1080/10426507.2018.1542397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
| | - Andrew J. Lake
- Department of Chemistry, Loughborough University, Loughborough, Leics, UK
| | - Martin B. Smith
- Department of Chemistry, Loughborough University, Loughborough, Leics, UK
| | - George W. Weaver
- Department of Chemistry, Loughborough University, Loughborough, Leics, UK
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Churusova SG, Aleksanyan DV, Vasil'ev AA, Rybalkina EY, Susova OY, Klemenkova ZS, Aysin RR, Nelyubina YV, Kozlov VA. Design of pincer complexes based on (methylsulfanyl)acetic/propionic acid amides with ancillary S- and N-donors as potential catalysts and cytotoxic agents. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4360] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Svetlana G. Churusova
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
| | - Diana V. Aleksanyan
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
| | - Andrei A. Vasil'ev
- Zelinsky Institute of Organic Chemistry; Russian Academy of Sciences; Leninskii pr. 47 Moscow 119991 Russia
| | - Ekaterina Yu. Rybalkina
- Blokhin Russian Cancer Research Center; Institute of Carcinogenesis; Kashirskoe sh. 24 Moscow 115478 Russia
| | - Olga Yu. Susova
- Blokhin Russian Cancer Research Center; Institute of Carcinogenesis; Kashirskoe sh. 24 Moscow 115478 Russia
| | - Zinaida S. Klemenkova
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
| | - Rinat R. Aysin
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
| | - Yulia V. Nelyubina
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
- Kurnakov Institute of General and Inorganic Chemistry; Russian Academy of Sciences; Leninskii pr. 31 Moscow 119991 Russia
| | - Vladimir A. Kozlov
- Nesmeyanov Institute of Organoelement Compounds; Russian Academy of Sciences; ul. Vavilova 28 Moscow 119991 Russia
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Amido-pincer complexes of Cu(II): Synthesis, coordination chemistry and applications in catalysis. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.03.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Organophosphines in organoplatinum complexes: structural aspects of PtPCX2 (X = OL, NL, Cl, SL, SeL, SiL, Br or I) derivatives. TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0173-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Milenković M, Pevec A, Turel I, Vujčić M, Milenković M, Jovanović K, Gligorijević N, Radulović S, Swart M, Gruden-Pavlović M, Adaila K, Cobeljić B, Anđelković K. Synthesis, characterization, DFT calculation and biological activity of square-planar Ni(II) complexes with tridentate PNO ligands and monodentate pseudohalides. Part II. Eur J Med Chem 2014; 87:284-97. [PMID: 25262049 DOI: 10.1016/j.ejmech.2014.06.079] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/10/2014] [Accepted: 06/12/2014] [Indexed: 10/24/2022]
Abstract
Three square-planar complexes of Ni(II) with condensation derivative of 2-(diphenylphosphino)benzaldehyde and 4-phenylsemicarbazide and monodentate pseudohalides have been synthesized and characterized on the basis of the results of X-ray, NMR and IR spectroscopy and elemental analysis. Investigated complexes exhibited moderate antibacterial and cytotoxic activity. The most pronounced cytotoxic activity (in the range of cisplatin) to HeLa cell line was observed for ligand and all the complexes. Azido complex and ligand induced concentration dependent cell cycle arrest in the S phase, as well as decrease of percentage of cells in G1 phase, without significant increase of apoptotic fraction of cells. The interaction of the azido complex and ligand with CT-DNA results in changes in UV-Vis spectra typical for non-covalent bonding. The observed intrinsic binding constant of azido complex-CT-DNA and ligand-CT-DNA were 3.22 × 10(5) M(-1) and 2.79 × 10(5) M(-1). The results of DNA cleavage experiments showed that azido complex nicked supercoiled plasmid DNA.
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Affiliation(s)
- Milica Milenković
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Andrej Pevec
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, 1000 Ljubljana, Slovenia
| | - Iztok Turel
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Aškerčeva 5, 1000 Ljubljana, Slovenia
| | - Miroslava Vujčić
- Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, P.O. Box 815, 11000 Belgrade, Serbia
| | - Marina Milenković
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Serbia
| | - Katarina Jovanović
- Institute for Oncology and Radiology of Serbia, Department of Experimental Oncology, Laboratory for Experimental Pharmacology, Pasterova 14, Belgrade, Serbia
| | - Nevenka Gligorijević
- Institute for Oncology and Radiology of Serbia, Department of Experimental Oncology, Laboratory for Experimental Pharmacology, Pasterova 14, Belgrade, Serbia
| | - Siniša Radulović
- Institute for Oncology and Radiology of Serbia, Department of Experimental Oncology, Laboratory for Experimental Pharmacology, Pasterova 14, Belgrade, Serbia
| | - Marcel Swart
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluís Companys 23, 08010 Barcelona, Spain; Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071 Girona, Spain
| | - Maja Gruden-Pavlović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Kawther Adaila
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Božidar Cobeljić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Katarina Anđelković
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia.
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Supramolecular assembly of molecular gold(I) compounds: An evaluation of the competition and complementarity between aurophilic (Au⋯Au) and conventional hydrogen bonding interactions. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.04.029] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Takaya H, Isozaki K, Haga Y, Ogata K, Naota T. Synthesis and Self-assembling Properties of Pt-Complex-bound Oligo(glutamic acid)s. CHEM LETT 2014. [DOI: 10.1246/cl.140259] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hikaru Takaya
- Department of Chemistry, Graduate School of Engineering Science, Osaka University
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University
- PRESTO, Japan Science and Technology Agency (JST)
| | - Katsuhiro Isozaki
- Department of Chemistry, Graduate School of Engineering Science, Osaka University
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University
| | - Yusuke Haga
- Department of Chemistry, Graduate School of Engineering Science, Osaka University
| | - Kazuki Ogata
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
| | - Takeshi Naota
- Department of Chemistry, Graduate School of Engineering Science, Osaka University
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Naik S, Kumaravel M, Mague JT, Balakrishna MS. Bisamino(diphosphonite) with dangling olefin functionalities: synthesis, metal chemistry and catalytic utility of Rhiand Pdiicomplexes in hydroformylation and Suzuki–Miyaura reactions. Dalton Trans 2014; 43:1082-95. [DOI: 10.1039/c3dt52400k] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Susmita Naik
- Phosphorus Laboratory, Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.
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Coles SJ, Dale SH, Elsegood MRJ, Gaw KG, Gelbrich T, Hursthouse MB, Light ME, Noble TA, Smith MB. Diverse Coordination Behaviour of Phosphorus(V)‐Functionalised 6‐Chloroaminobenzothiazole Anions at Various Metal Centres. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201100960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Simon J. Coles
- EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Sophie H. Dale
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K., Fax: +44‐1509‐223925
| | - Mark R. J. Elsegood
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K., Fax: +44‐1509‐223925
| | - Kirsty G. Gaw
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K., Fax: +44‐1509‐223925
| | - Thomas Gelbrich
- EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Michael B. Hursthouse
- EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Mark E. Light
- EPSRC National Crystallography Service, School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, U.K
| | - Thomas A. Noble
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K., Fax: +44‐1509‐223925
| | - Martin B. Smith
- Department of Chemistry, Loughborough University, Loughborough, Leics LE11 3TU, U.K., Fax: +44‐1509‐223925
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12
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New κ3-PNN′- and κ4-PNN′O-polydentate ligands: Synthesis, coordination and structural studies. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.09.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Zhang W, Wang Y, Yu J, Redshaw C, Hao X, Sun WH. 2-(N-Alkylcarboxamide)-6-iminopyridyl palladium and nickel complexes: coordination chemistry and catalysis. Dalton Trans 2011; 40:12856-65. [DOI: 10.1039/c1dt11079a] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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