Ruthenium carbonyl clusters derived from pyrazolyl substituted diphosphazanes: Crystal and molecular structure of a triruthenium cluster featuring a triply bridging μ3-η1:η1:η1 coordination mode of pyrazolate moiety |
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| Institution: | 1. Molecular and Environmental Science Research Group, Department of Geological Sciences, University of Saskatchewan, Saskatoon, SK S7N 5E2, Canada;2. Toxicology Center, University of Saskatchewan, Saskatoon, SK S7N 5B3, Canada;3. Department of Chemistry, University of Saskatchewan, Saskatoon, SK S7N 5C9, Canada;4. Department of Chemistry, University of Calgary, Calgary, Alberta T2N 1N4, Canada;5. Division of Hematology–Oncology, University of California Los Angeles, CA, USA;6. School of Medicine, Emory University, Atlanta, GA, USA;7. Chemistry Department, Wagner College, Staten Island, NY, USA;8. Department of Health Sciences, The University of Chicago, Chicago, IL, USA;9. School of Medicine, University Malaysia Sabah, Sabah, Malaysia;10. Nutritional Sciences, Texas Tech University, Lubbock, TX, USA;1. Dipartimento di Scienze della Salute, Università di Catanzaro, Viale Europa, 88100 Catanzaro, Italy;2. Dipartimento di Scienze Chimiche, Università degli Studi di Catania, viale Andrea Doria, 6, 95125 Catania, Italy;3. Fondazione RI.MED, Via Bandiera 11, 90133 Palermo, Italy;4. Dipartimento di Farmacia, Università di Pisa, via Bonanno Pisano, 6, 56126 Pisa, Italy;5. Istituto di Biostrutture e Bioimagini—Consiglio Nazionale delle Ricerche (IBB—CNR), Via Paolo Gaifami, 18, 95126 Catania, Italy |
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| Abstract: | The radical initiated reactions of Ru3(CO)12 with pyrazolyl substituted diphosphazanes Ph2PN(R)PPh(N2C3HMe2-3,5) R = (S)-*CHMePh (1) or CHMe2 (2)] proceed via P–N(pyrazole) bond rupture resulting in the formation of phosphido clusters, Ru3(CO)5(μsb-CO)2(μ3-N,N′-η1:η1:η1-N2C3HMe2-3,5){μ-P,P′-Ph2PN(R)PPh}] R = (S)-*CHMePh (3) or CHMe2 (4)]. The pyrazolate moiety adopts an unusual triply bridging μ3-η1:η1:η1-mode of coordination in these clusters. |
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