Multiple bonding versus cage formation in organophosphorus compounds: The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t determined by electron diffraction and computational methods

D.A. Wann; S.L. Masters; H.E. Robertson; M. Green; R.J. Kilby; C.A. Russell; C. Jones; D.W.H. Rankin

doi:10.1039/c1dt10041f

Multiple bonding versus cage formation in organophosphorus compounds: The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t determined by electron diffraction and computational methods

D.A. Wann, S.L. Masters, H.E. Robertson, M. Green, R.J. Kilby, C.A. Russell, C. Jones, D.W.H. Rankin

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t have been determined by electron diffraction and associated quantum chemical calculations. Efforts to obtain detailed solid-state data for tricyclo-P 3(CBu t) 2Cl have been thwarted by inability to prepare suitable crystalline material. Additional calculations for another tricyclic isomer of P 3(CBu t) 2Cl and for two phosphorus-containing cyclopentadiene derivatives with pseudo-planar five-membered rings show that the experimentally observed isomer is more stable by at least 52 kJ mol -1. Calculations for the equivalent structures with P atoms replaced by CH fragments have demonstrated that a ring structure is more favourable by over 200 kJ mol -1 compared to each of two cage structures. © The Royal Society of Chemistry.

Original language	Undefined/Unknown
Pages (from-to)	5611-5616
Number of pages	6
Journal	Dalton Transactions
Volume	40
Issue number	20
DOIs	https://doi.org/10.1039/c1dt10041f
Publication status	Published - 28 May 2011

Bibliographical note

Export Date: 1 October 2013

Source: Scopus

doi: 10.1039/c1dt10041f

Language of Original Document: English

Correspondence Address: Wann, D. A.; School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom

References: Dillon, K.B., Mathey, F., Nixon, J.F., (1998) Phosphorus: The Carbon Copy, , Wiley, Chichester; Binger, P., Wettling, T., Schneider, R., Zurmühlen, F., Bergstrasser, U., Hoffmann, J., Maas, G., Regitz, M., (1991) Angew. Chem., Int. Ed. Engl., 30, p. 207; Binger, P., Biedenbach, B., Krüger, C., Regitz, M., (1987) Angew. Chem., Int. Ed. Engl., 26, p. 764; Fish, C., Green, M., Jeffery, J.C., Kilby, R.J., Lynam, J.M., Russell, C.A., Willans, C.E., (2005) Organometallics, 24, p. 5789; Lynam, J.M., Copsey, M.C., Green, M., Jeffery, J.C., McGrady, J.E., Russell, C.A., Slattery, J.M., Swain, A.C., (2003) Angew. Chem., Int. Ed., 42, p. 2778; Fish, C., Green, M., Kilby, R.J., Lynam, J.M., McGrady, J.E., Pantazis, D.A., Russell, C.A., Willans, C.E., (2006) Angew. Chem., Int. Ed., 45, p. 3628. , and references therein; Willans, C.E., Fish, C., Green, M., Kilby, R.J., Lynam, J.M., Russell, C.A., Whitwood, A.C., (2008) Dalton Trans., p. 3422; Becker, G., Mundt, O., (1980) Z. Anorg. Allg. Chem., 462, p. 130; Becker, G., Gresser, G., Uhl, W., (1980) Z. Anorg. Allg. Chem., 463, p. 144; Becker, G., Birkhahn, M., Massa, W., Uhl, W., (1980) Angew. Chem., Int. Ed. Engl., 92, p. 756; Oberhammer, H., Becker, G., Gresser, G., (1981) J. Mol. Struct., 75, p. 283; Huntley, C.M., Laurenson, G.S., Rankin, D.W.H., (1980) J. Chem. Soc., Dalton Trans., p. 954; Fleischer, H., Wann, D.A., Hinchley, S.L., Borisenko, K.B., Lewis, J.R., Mawhorter, R.J., Robertson, H.E., Rankin, D.W.H., (2005) Dalton Trans., p. 3221; Hinchley, S.L., Robertson, H.E., Borisenko, K.B., Turner, A.R., Johnston, B.F., Rankin, D.W.H., Ahmadian, M., Cowley, A.H., (2004) Dalton Trans., p. 2469; Ross, A.W., Fink, M., Hilderbrandt, R., (1992) International Tables for Crystallography, Ed., , http://www.nsccs.ac.uk, A. J. C. Wilson, Kluwer Academic Publishers, Dordrecht, Netherlands, 245 National Service for Computational Chemistry Software (NSCCS). URL EaStCHEM Research Computing Facility; Frisch, M.J., Trucks, G.W., Schlegel, H.B., Scuseria, G.E., Robb, M.A., Cheeseman, J.R., Montgomery, Jr.J.A., Pople, J.A., (2004) GAUSSIAN 03 (Revision C.02), , Gaussian, Inc., Wallingford, CT; Binkley, J.S., Pople, J.A., Hehre, W.J., (1980) J. Am. Chem. Soc., 102, p. 939; Gordon, M.S., Binkley, J.S., Pople, J.A., Pietro, W.J., Hehre, W.J., (1982) J. Am. Chem. Soc., 104, p. 2797; Pietro, W.J., Francl, M.M., Hehre, W.J., Defrees, D.J., Pople, J.A., Binkley, J.S., (1982) J. Am. Chem. Soc., 104, p. 5039; Hehre, W.J., Ditchfield, R., Pople, J.A., (1972) J. Chem. Phys., 56, p. 2257; Hariharan, P.C., Pople, J.A., (1973) Theor. Chim. Acta, 28, p. 213; Gordon, M.S., (1980) Chem. Phys. Lett., 76, p. 163; Møller, C., Plesset, M.S., (1934) Phys. Rev., 46, p. 618; Krishnan, R., Binkley, J.S., Seeger, R., Pople, J.A., (1980) J. Chem. Phys., 72, p. 650; McLean, A.D., Chandler, G.S., (1980) J. Chem. Phys., 72, p. 5639; Sipachev, V.A., (1985) THEOCHEM, 121, p. 143; Sipachev, V.A., (2001) J. Mol. Struct., 576, p. 67; Bartlett, R.J., Purvis Iii, G.D., (1978) Int. J. Quantum Chem., 14, p. 561; Pople, J.A., Krishnan, R., Schlegel, H.B., Binkley, J.S., (1978) Int. J. Quantum Chem., 14, p. 545; Pople, J.A., Head-Gordon, M., Raghavachari, K., (1987) J. Chem. Phys., 87, p. 5968; Blake, A.J., Brain, P.T., McNab, H., Miller, J., Morrison, C.A., Parsons, S., Rankin, D.W.H., Smart, B.A., (1996) J. Phys. Chem., 100, p. 12280; Brain, P.T., Morrison, C.A., Parsons, S., Rankin, D.W.H., (1996) J. Chem. Soc., Dalton Trans., p. 4589; Mitzel, N.W., Rankin, D.W.H., (2003) Dalton Trans., p. 3650; Yu., A.M., Chernega, A.N., Lysenko, K.A., Struchkov, Yu.T., Nixon, J.F., (1995) J. Chem. Soc., Chem. Commun., p. 505

Keywords

Cage formation
Cage structures
Cyclopentadienes
Five-membered rings
Gas-phase structures
Multiple bonding
Organophosphorus compounds
Quantum chemical calculations
Ring structures
Crystalline materials
Electron diffraction
Isomers
Olefins
Phase structure
Phosphorus
Phosphorus compounds
Quantum chemistry
Chlorine

Access to Document

10.1039/c1dt10041f

http://www.scopus.com/inward/record.url?eid=2-s2.0-79955617742&partnerID=40&md5=d783999e82750c7d5e84e2f17ad7b713

Cite this

Wann, D. A., Masters, S. L., Robertson, H. E., Green, M., Kilby, R. J., Russell, C. A., Jones, C., & Rankin, D. W. H. (2011). Multiple bonding versus cage formation in organophosphorus compounds: The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t determined by electron diffraction and computational methods. Dalton Transactions, 40(20), 5611-5616. https://doi.org/10.1039/c1dt10041f

@article{f2afa6b2e6de4832b34a032c5ad802ea,

title = "Multiple bonding versus cage formation in organophosphorus compounds: The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t determined by electron diffraction and computational methods",

abstract = "The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t have been determined by electron diffraction and associated quantum chemical calculations. Efforts to obtain detailed solid-state data for tricyclo-P 3(CBu t) 2Cl have been thwarted by inability to prepare suitable crystalline material. Additional calculations for another tricyclic isomer of P 3(CBu t) 2Cl and for two phosphorus-containing cyclopentadiene derivatives with pseudo-planar five-membered rings show that the experimentally observed isomer is more stable by at least 52 kJ mol -1. Calculations for the equivalent structures with P atoms replaced by CH fragments have demonstrated that a ring structure is more favourable by over 200 kJ mol -1 compared to each of two cage structures. {\textcopyright} The Royal Society of Chemistry.",

keywords = "Cage formation, Cage structures, Cyclopentadienes, Five-membered rings, Gas-phase structures, Multiple bonding, Organophosphorus compounds, Quantum chemical calculations, Ring structures, Crystalline materials, Electron diffraction, Isomers, Olefins, Phase structure, Phosphorus, Phosphorus compounds, Quantum chemistry, Chlorine",

author = "D.A. Wann and S.L. Masters and H.E. Robertson and M. Green and R.J. Kilby and C.A. Russell and C. Jones and D.W.H. Rankin",

note = "Export Date: 1 October 2013 Source: Scopus doi: 10.1039/c1dt10041f Language of Original Document: English Correspondence Address: Wann, D. A.; School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom References: Dillon, K.B., Mathey, F., Nixon, J.F., (1998) Phosphorus: The Carbon Copy, , Wiley, Chichester; Binger, P., Wettling, T., Schneider, R., Zurm{\"u}hlen, F., Bergstrasser, U., Hoffmann, J., Maas, G., Regitz, M., (1991) Angew. Chem., Int. Ed. Engl., 30, p. 207; Binger, P., Biedenbach, B., Kr{\"u}ger, C., Regitz, M., (1987) Angew. Chem., Int. Ed. Engl., 26, p. 764; Fish, C., Green, M., Jeffery, J.C., Kilby, R.J., Lynam, J.M., Russell, C.A., Willans, C.E., (2005) Organometallics, 24, p. 5789; Lynam, J.M., Copsey, M.C., Green, M., Jeffery, J.C., McGrady, J.E., Russell, C.A., Slattery, J.M., Swain, A.C., (2003) Angew. Chem., Int. Ed., 42, p. 2778; Fish, C., Green, M., Kilby, R.J., Lynam, J.M., McGrady, J.E., Pantazis, D.A., Russell, C.A., Willans, C.E., (2006) Angew. Chem., Int. Ed., 45, p. 3628. , and references therein; Willans, C.E., Fish, C., Green, M., Kilby, R.J., Lynam, J.M., Russell, C.A., Whitwood, A.C., (2008) Dalton Trans., p. 3422; Becker, G., Mundt, O., (1980) Z. Anorg. Allg. Chem., 462, p. 130; Becker, G., Gresser, G., Uhl, W., (1980) Z. Anorg. Allg. Chem., 463, p. 144; Becker, G., Birkhahn, M., Massa, W., Uhl, W., (1980) Angew. Chem., Int. Ed. Engl., 92, p. 756; Oberhammer, H., Becker, G., Gresser, G., (1981) J. Mol. Struct., 75, p. 283; Huntley, C.M., Laurenson, G.S., Rankin, D.W.H., (1980) J. Chem. Soc., Dalton Trans., p. 954; Fleischer, H., Wann, D.A., Hinchley, S.L., Borisenko, K.B., Lewis, J.R., Mawhorter, R.J., Robertson, H.E., Rankin, D.W.H., (2005) Dalton Trans., p. 3221; Hinchley, S.L., Robertson, H.E., Borisenko, K.B., Turner, A.R., Johnston, B.F., Rankin, D.W.H., Ahmadian, M., Cowley, A.H., (2004) Dalton Trans., p. 2469; Ross, A.W., Fink, M., Hilderbrandt, R., (1992) International Tables for Crystallography, Ed., , http://www.nsccs.ac.uk, A. J. C. Wilson, Kluwer Academic Publishers, Dordrecht, Netherlands, 245 National Service for Computational Chemistry Software (NSCCS). URL EaStCHEM Research Computing Facility; Frisch, M.J., Trucks, G.W., Schlegel, H.B., Scuseria, G.E., Robb, M.A., Cheeseman, J.R., Montgomery, Jr.J.A., Pople, J.A., (2004) GAUSSIAN 03 (Revision C.02), , Gaussian, Inc., Wallingford, CT; Binkley, J.S., Pople, J.A., Hehre, W.J., (1980) J. Am. Chem. Soc., 102, p. 939; Gordon, M.S., Binkley, J.S., Pople, J.A., Pietro, W.J., Hehre, W.J., (1982) J. Am. Chem. Soc., 104, p. 2797; Pietro, W.J., Francl, M.M., Hehre, W.J., Defrees, D.J., Pople, J.A., Binkley, J.S., (1982) J. Am. Chem. Soc., 104, p. 5039; Hehre, W.J., Ditchfield, R., Pople, J.A., (1972) J. Chem. Phys., 56, p. 2257; Hariharan, P.C., Pople, J.A., (1973) Theor. Chim. Acta, 28, p. 213; Gordon, M.S., (1980) Chem. Phys. Lett., 76, p. 163; M{\o}ller, C., Plesset, M.S., (1934) Phys. Rev., 46, p. 618; Krishnan, R., Binkley, J.S., Seeger, R., Pople, J.A., (1980) J. Chem. Phys., 72, p. 650; McLean, A.D., Chandler, G.S., (1980) J. Chem. Phys., 72, p. 5639; Sipachev, V.A., (1985) THEOCHEM, 121, p. 143; Sipachev, V.A., (2001) J. Mol. Struct., 576, p. 67; Bartlett, R.J., Purvis Iii, G.D., (1978) Int. J. Quantum Chem., 14, p. 561; Pople, J.A., Krishnan, R., Schlegel, H.B., Binkley, J.S., (1978) Int. J. Quantum Chem., 14, p. 545; Pople, J.A., Head-Gordon, M., Raghavachari, K., (1987) J. Chem. Phys., 87, p. 5968; Blake, A.J., Brain, P.T., McNab, H., Miller, J., Morrison, C.A., Parsons, S., Rankin, D.W.H., Smart, B.A., (1996) J. Phys. Chem., 100, p. 12280; Brain, P.T., Morrison, C.A., Parsons, S., Rankin, D.W.H., (1996) J. Chem. Soc., Dalton Trans., p. 4589; Mitzel, N.W., Rankin, D.W.H., (2003) Dalton Trans., p. 3650; Yu., A.M., Chernega, A.N., Lysenko, K.A., Struchkov, Yu.T., Nixon, J.F., (1995) J. Chem. Soc., Chem. Commun., p. 505",

year = "2011",

month = may,

day = "28",

doi = "10.1039/c1dt10041f",

language = "Undefined/Unknown",

volume = "40",

pages = "5611--5616",

journal = "Dalton Transactions",

issn = "1477-9226",

publisher = "The Royal Society of Chemistry",

number = "20",

}

Wann, DA, Masters, SL, Robertson, HE, Green, M, Kilby, RJ, Russell, CA, Jones, C & Rankin, DWH 2011, 'Multiple bonding versus cage formation in organophosphorus compounds: The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t determined by electron diffraction and computational methods', Dalton Transactions, vol. 40, no. 20, pp. 5611-5616. https://doi.org/10.1039/c1dt10041f

Multiple bonding versus cage formation in organophosphorus compounds: The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t determined by electron diffraction and computational methods. / Wann, D.A.; Masters, S.L.; Robertson, H.E. et al.
In: Dalton Transactions, Vol. 40, No. 20, 28.05.2011, p. 5611-5616.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Multiple bonding versus cage formation in organophosphorus compounds: The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t determined by electron diffraction and computational methods

AU - Wann, D.A.

AU - Masters, S.L.

AU - Robertson, H.E.

AU - Green, M.

AU - Kilby, R.J.

AU - Russell, C.A.

AU - Jones, C.

AU - Rankin, D.W.H.

N1 - Export Date: 1 October 2013 Source: Scopus doi: 10.1039/c1dt10041f Language of Original Document: English Correspondence Address: Wann, D. A.; School of Chemistry, University of Edinburgh, West Mains Road, Edinburgh EH9 3JJ, United Kingdom References: Dillon, K.B., Mathey, F., Nixon, J.F., (1998) Phosphorus: The Carbon Copy, , Wiley, Chichester; Binger, P., Wettling, T., Schneider, R., Zurmühlen, F., Bergstrasser, U., Hoffmann, J., Maas, G., Regitz, M., (1991) Angew. Chem., Int. Ed. Engl., 30, p. 207; Binger, P., Biedenbach, B., Krüger, C., Regitz, M., (1987) Angew. Chem., Int. Ed. Engl., 26, p. 764; Fish, C., Green, M., Jeffery, J.C., Kilby, R.J., Lynam, J.M., Russell, C.A., Willans, C.E., (2005) Organometallics, 24, p. 5789; Lynam, J.M., Copsey, M.C., Green, M., Jeffery, J.C., McGrady, J.E., Russell, C.A., Slattery, J.M., Swain, A.C., (2003) Angew. Chem., Int. Ed., 42, p. 2778; Fish, C., Green, M., Kilby, R.J., Lynam, J.M., McGrady, J.E., Pantazis, D.A., Russell, C.A., Willans, C.E., (2006) Angew. Chem., Int. Ed., 45, p. 3628. , and references therein; Willans, C.E., Fish, C., Green, M., Kilby, R.J., Lynam, J.M., Russell, C.A., Whitwood, A.C., (2008) Dalton Trans., p. 3422; Becker, G., Mundt, O., (1980) Z. Anorg. Allg. Chem., 462, p. 130; Becker, G., Gresser, G., Uhl, W., (1980) Z. Anorg. Allg. Chem., 463, p. 144; Becker, G., Birkhahn, M., Massa, W., Uhl, W., (1980) Angew. Chem., Int. Ed. Engl., 92, p. 756; Oberhammer, H., Becker, G., Gresser, G., (1981) J. Mol. Struct., 75, p. 283; Huntley, C.M., Laurenson, G.S., Rankin, D.W.H., (1980) J. Chem. Soc., Dalton Trans., p. 954; Fleischer, H., Wann, D.A., Hinchley, S.L., Borisenko, K.B., Lewis, J.R., Mawhorter, R.J., Robertson, H.E., Rankin, D.W.H., (2005) Dalton Trans., p. 3221; Hinchley, S.L., Robertson, H.E., Borisenko, K.B., Turner, A.R., Johnston, B.F., Rankin, D.W.H., Ahmadian, M., Cowley, A.H., (2004) Dalton Trans., p. 2469; Ross, A.W., Fink, M., Hilderbrandt, R., (1992) International Tables for Crystallography, Ed., , http://www.nsccs.ac.uk, A. J. C. Wilson, Kluwer Academic Publishers, Dordrecht, Netherlands, 245 National Service for Computational Chemistry Software (NSCCS). URL EaStCHEM Research Computing Facility; Frisch, M.J., Trucks, G.W., Schlegel, H.B., Scuseria, G.E., Robb, M.A., Cheeseman, J.R., Montgomery, Jr.J.A., Pople, J.A., (2004) GAUSSIAN 03 (Revision C.02), , Gaussian, Inc., Wallingford, CT; Binkley, J.S., Pople, J.A., Hehre, W.J., (1980) J. Am. Chem. Soc., 102, p. 939; Gordon, M.S., Binkley, J.S., Pople, J.A., Pietro, W.J., Hehre, W.J., (1982) J. Am. Chem. Soc., 104, p. 2797; Pietro, W.J., Francl, M.M., Hehre, W.J., Defrees, D.J., Pople, J.A., Binkley, J.S., (1982) J. Am. Chem. Soc., 104, p. 5039; Hehre, W.J., Ditchfield, R., Pople, J.A., (1972) J. Chem. Phys., 56, p. 2257; Hariharan, P.C., Pople, J.A., (1973) Theor. Chim. Acta, 28, p. 213; Gordon, M.S., (1980) Chem. Phys. Lett., 76, p. 163; Møller, C., Plesset, M.S., (1934) Phys. Rev., 46, p. 618; Krishnan, R., Binkley, J.S., Seeger, R., Pople, J.A., (1980) J. Chem. Phys., 72, p. 650; McLean, A.D., Chandler, G.S., (1980) J. Chem. Phys., 72, p. 5639; Sipachev, V.A., (1985) THEOCHEM, 121, p. 143; Sipachev, V.A., (2001) J. Mol. Struct., 576, p. 67; Bartlett, R.J., Purvis Iii, G.D., (1978) Int. J. Quantum Chem., 14, p. 561; Pople, J.A., Krishnan, R., Schlegel, H.B., Binkley, J.S., (1978) Int. J. Quantum Chem., 14, p. 545; Pople, J.A., Head-Gordon, M., Raghavachari, K., (1987) J. Chem. Phys., 87, p. 5968; Blake, A.J., Brain, P.T., McNab, H., Miller, J., Morrison, C.A., Parsons, S., Rankin, D.W.H., Smart, B.A., (1996) J. Phys. Chem., 100, p. 12280; Brain, P.T., Morrison, C.A., Parsons, S., Rankin, D.W.H., (1996) J. Chem. Soc., Dalton Trans., p. 4589; Mitzel, N.W., Rankin, D.W.H., (2003) Dalton Trans., p. 3650; Yu., A.M., Chernega, A.N., Lysenko, K.A., Struchkov, Yu.T., Nixon, J.F., (1995) J. Chem. Soc., Chem. Commun., p. 505

PY - 2011/5/28

Y1 - 2011/5/28

N2 - The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t have been determined by electron diffraction and associated quantum chemical calculations. Efforts to obtain detailed solid-state data for tricyclo-P 3(CBu t) 2Cl have been thwarted by inability to prepare suitable crystalline material. Additional calculations for another tricyclic isomer of P 3(CBu t) 2Cl and for two phosphorus-containing cyclopentadiene derivatives with pseudo-planar five-membered rings show that the experimentally observed isomer is more stable by at least 52 kJ mol -1. Calculations for the equivalent structures with P atoms replaced by CH fragments have demonstrated that a ring structure is more favourable by over 200 kJ mol -1 compared to each of two cage structures. © The Royal Society of Chemistry.

AB - The gas-phase structures of tricyclo-P 3(CBu t) 2Cl and PC-Bu t have been determined by electron diffraction and associated quantum chemical calculations. Efforts to obtain detailed solid-state data for tricyclo-P 3(CBu t) 2Cl have been thwarted by inability to prepare suitable crystalline material. Additional calculations for another tricyclic isomer of P 3(CBu t) 2Cl and for two phosphorus-containing cyclopentadiene derivatives with pseudo-planar five-membered rings show that the experimentally observed isomer is more stable by at least 52 kJ mol -1. Calculations for the equivalent structures with P atoms replaced by CH fragments have demonstrated that a ring structure is more favourable by over 200 kJ mol -1 compared to each of two cage structures. © The Royal Society of Chemistry.

KW - Cage formation

KW - Cage structures

KW - Cyclopentadienes

KW - Five-membered rings

KW - Gas-phase structures

KW - Multiple bonding

KW - Organophosphorus compounds

KW - Quantum chemical calculations

KW - Ring structures

KW - Crystalline materials

KW - Electron diffraction

KW - Isomers

KW - Olefins

KW - Phase structure

KW - Phosphorus

KW - Phosphorus compounds

KW - Quantum chemistry

KW - Chlorine

U2 - 10.1039/c1dt10041f

DO - 10.1039/c1dt10041f

M3 - Article

SN - 1477-9226

VL - 40

SP - 5611

EP - 5616

JO - Dalton Transactions

JF - Dalton Transactions

IS - 20

ER -