Structure and multinuclear solid-state NMR of a highly birefringent lead-gold cyanide coordination polymer

Journal of the American Chemical Society
Michael J KatzDaniel B Leznoff

Abstract

The coordination polymer Pb(H2O)[Au(CN)2]2 (1) was synthesized by the reaction of KAu(CN)2 and Pb(NO3)2. The structure contains 1-D chains of lead(II)-OH2 linked via Au(CN)2(-) moieties, generating a 2-D slab; weak aurophilic interactions of 3.506(2) and 3.4885(5) A occur within and between slabs. The geometry about each lead(II) is bicapped trigonal prismatic, having six N-bound cyanides at the prism vertices and waters at two of the faces. Dehydration at 175 degrees C yields microcrystalline Pb[Au(CN)2]2 (2), which, along with 1, was examined by 13C, 15N, 1H, and 207Pb solid-state NMR methods. Two 15N resonances are assigned to the mu2-bridging and hydrogen-bonding cyanides in 1. Upon dehydration, the 207Pb NMR spectrum becomes axially symmetric and yields a reduced shielding span, indicating higher site symmetry, while the 13C and 15N spectra reveal a single cyanide. Although no single-crystal X-ray structure of 2 could be obtained, a structure is proposed on the basis of the NMR and X-ray powder data, consisting of a lead(II) center in a distorted square-prismatic environment, with cyanides present at each corner. The birefringence of single crystals of 1 is found to be 7.0 x 10(-2) at room temperature. This value is large ...Continue Reading

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Citations

Feb 10, 2009·Journal of the American Chemical Society·Andrea DeákGábor Pálinkás
Dec 4, 2009·Journal of the American Chemical Society·Michael J Katz, Daniel B Leznoff
Jun 28, 2012·Sensors·Julie LefebvreDaniel B Leznoff
Dec 24, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Jaclyn CatalanoCecil Dybowski
Oct 31, 2007·Angewandte Chemie·Michael J KatzDaniel B Leznoff
Aug 5, 2009·Physical Chemistry Chemical Physics : PCCP·Pedro M AguiarScott Kroeker
Nov 8, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Rosa PedridoGuillermo Zaragoza
Mar 18, 2009·Physical Chemistry Chemical Physics : PCCP·Pedro M Aguiar, Scott Kroeker
Aug 25, 2011·Chemical Society Reviews·Hubert Schmidbaur, Annette Schier
May 16, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Aaron J RossiniGlen G Briand
Feb 4, 2014·Chemistry : a European Journal·Jesús R BerenguerSergio Sánchez
Apr 30, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Andrew R GeisheimerDaniel B Leznoff
Feb 28, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Takeshi KobayashiMarek Pruski
May 17, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Matthew L BrownDaniel B Leznoff
Jul 5, 2019·Acta Crystallographica. Section C, Structural Chemistry·Joshua A SilvermanKonstantinos Kavallieratos
Aug 1, 2016·ChemPlusChem·Jeffrey S Ovens, Daniel B Leznoff
Jul 23, 2008·Journal of the American Chemical Society·Michael J KatzDaniel B Leznoff
Jul 20, 2021·Angewandte Chemie·Ya-Nan YangTao Zhang
Aug 30, 2018·Inorganic Chemistry·Abdul Malik P PeedikakkalJagadese J Vittal
Jun 23, 2015·Inorganic Chemistry·John R ThompsonDaniel B Leznoff
Oct 13, 2007·Journal of the American Chemical Society·Eric L MargelefskyMark E Davis

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