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Inorganic-organic hybrids of the p,p'-diphenylmethylenediphosphinate, pcp2-. synthesis, characterization and XRPD structures of [Sn(pcp)] and [Cu(pcp)]

Beckmann, Jens, Costantino, Ferdinando, Dakternieks, Dainis, Duthie, Andrew, Lenco, Andrea, Midollini, Stefano, Mitchell, Cassandra, Orlandini, Annabella and Sorace, Lorenzo 2005, Inorganic-organic hybrids of the p,p'-diphenylmethylenediphosphinate, pcp2-. synthesis, characterization and XRPD structures of [Sn(pcp)] and [Cu(pcp)], Inorganic chemistry, vol. 44, no. 25, pp. 9416-9423, doi: 10.1021/ic050683p.

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Title Inorganic-organic hybrids of the p,p'-diphenylmethylenediphosphinate, pcp2-. synthesis, characterization and XRPD structures of [Sn(pcp)] and [Cu(pcp)]
Formatted title Inorganic-organic hybrids of the p,p'-diphenylmethylenediphosphinate, pcp2-. synthesis, characterization and XRPD structures of [Sn(pcp)] and [Cu(pcp)]
Author(s) Beckmann, Jens
Costantino, Ferdinando
Dakternieks, Dainis
Duthie, Andrew
Lenco, Andrea
Midollini, Stefano
Mitchell, Cassandra
Orlandini, Annabella
Sorace, Lorenzo
Journal name Inorganic chemistry
Volume number 44
Issue number 25
Start page 9416
End page 9423
Publisher ACS Publications
Place of publication San Diego, Calif
Publication date 2005
ISSN 0020-1669
1520-510X
Summary Two new inorganic-organic polymeric hybrids [Sn(pcp)] and [Cu(pcp)], pcp = CH2(PhPO2)22-, have been synthesized and structurally chracterized. The tin derivative has been obtained by reaction of the p,p'-diphenylmethylenediphosphinic acid (H2pcp) in water with SnCl2·2H2O, while the copper derivative has been synthesized through a hydrothermal reaction from the same H2pcp acid and Cu(O2CMe)2·H2O. The structures of these compounds have been solved "ab initio" by X-ray powder diffraction (XRPD) data. [Sn(pcp)] has a ladder-like polymeric structure, with tin(II) centers bridged by diphenylmethylenediphosphinate ligands, and alternating six- and eight-membered rings. The hemilectic coordination around the metal shows the tin(II) lone pair to be operative, resulting in significant interaction mainly with a C-C bond of one phenyl ring. The [Cu(pcp)] complex displays a polymeric columnar structure formed by two intersecting sinusoidal ribbons of copper(II) ions bridged by the bifunctional phosphinate ligands. The intersections of the ribbons are made of dimeric units of pentacoordinated copper ions. Crystal data for [Sn(pcp)]: monoclinic, space group P21Ic, a = 11.2851(1), b = 15.4495(6), c = 8.6830(1) Å, β= 107.546(1)°, V = 1443.44(9) Å, Z = 4. Crystal data for [Cu(pcp)]: triclinic, space group P, a = 10.7126(4), b = 13.0719(4), c = 4.9272(3) Å, α= 92.067(5), β= 95.902(7), γ= 87.847(4)°, V = 685.47(7), Z = 2. The tin compound has been characterized by 119Sn MAS NMR (magic-angle spinning NMR), revealing asymmetry in the valence electron cloud about tin. Low-temperature magnetic measurements of the copper compound have indicated the presence of weak antiferromagnetic interactions below 50 K.


Language eng
DOI 10.1021/ic050683p
Field of Research 039904 Organometallic Chemistry
Socio Economic Objective 970103 Expanding Knowledge in the Chemical Sciences
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2005, American Chemical Society
Persistent URL http://hdl.handle.net/10536/DRO/DU:30008885

Document type: Journal Article
Collection: School of Biological and Chemical Sciences
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