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1,2,4\u2010diazaphospholide ligand (see figure).<jats:boxed-text content-type=\"graphic\" position=\"anchor\"><jats:graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mimetype=\"image\/gif\" position=\"anchor\" specific-use=\"enlarged-web-image\" xlink:href=\"graphic\/mcontent.gif\"><jats:alt-text>magnified image<\/jats:alt-text><\/jats:graphic><\/jats:boxed-text><\/jats:p>","DOI":"10.1002\/chem.200900867","type":"journal-article","created":{"date-parts":[[2009,6,4]],"date-time":"2009-06-04T09:48:33Z","timestamp":1244108913000},"page":"6581-6585","source":"Crossref","is-referenced-by-count":20,"title":["1,2,4\u2010Diazaphospholide Complexes of Tin(II): From Nitride Stannylene to Stannylenated Ammonium Ions"],"prefix":"10.1002","volume":"15","author":[{"given":"Chengfu","family":"Pi","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jos\u00e9","family":"Elguero","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Li","family":"Wan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ibon","family":"Alkorta","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wenjun","family":"Zheng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Linhong","family":"Weng","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhenxia","family":"Chen","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Limin","family":"Wu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,6,29]]},"reference":[{"key":"e_1_2_4_1_2","unstructured":"For 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the Supporting Information."},{"key":"e_1_2_4_49_2","unstructured":"Although it is difficult to distinguish a nitride ion from an oxide (phosphide) anion in a crystal structure analysis the presence of the latter can be largely excluded because the assumption of an O2\u2212(P3\u2212) ion in place of the N3\u2212ion would not result in a neutral charge (no expected significant downfield resonance was observed in the31P{1H}\u2005NMR spectrum) for this divalent tin compound."},{"key":"e_1_2_4_50_2","unstructured":"Crystallographic data[28]for2\u22c5hexane: formula C56H104N11P5Sn4;Mr=1156.11;T=293\u2005K; crystal system orthorhombic; space groupC222(1);a=14.718(5) b=24.080(9) c=20.149(7)\u2005\u00c5;\u03b1=\u03b2=\u03b3=90\u00b0;V=7141(4)\u2005\u00c53;Z=4;\u03c1calcd=1.452\u2005g\u2009cm\u22123; crystal size 0.18\u00d70.15\u00d70.10\u2005mm3;F(000)=3168;\u03bc(MoK\u03b1)=1.536\u2005mm\u22121; 1.62\u2264\u03b8\u226426.01\u00b0; 7004 independent reflections (Rint=0.0296); GOF=0.982; 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Crystallographic data for3: formula C80H144N17P8SmSn4;Mr=2216.99;T=293\u2005K; crystal system monoclinic; space groupP21\/c;\u03b1=13.370(5) b=26.470(9) c=30.022(10)\u2005\u00c5;\u03b1=\u03b3=90\u00b0 \u03b2=90.653(5)\u00b0;V=10\u2009624(6)\u2005\u00c53;Z=4;\u03c1calcd=1.386\u2005g\u2009cm\u22123; crystal size 0.25\u00d70.12\u00d70.10\u2005mm3;F(000)=4500;\u03bc(MoK\u03b1)=1.636\u2005mm\u22121; 1.52\u2264\u03b8\u226425.01\u00b0; 18\u2009676 independent reflections (Rint=0.0454); GOF=0.898; finalRindices wereR1=0.0397 [I>2\u03c3(I)] andwR2=0.0790 (all data); residual electron density 0.707\/\u22120.431\u2005e\u2009\u00c5\u22123. MoK\u03b1radiation (\u03bb=0.71073). CCDC\u2010713387 (2) and \u2010713388 (3) contain the supplementary crystallographic data for this paper. These data can be obtained free of charge from The Cambridge Crystallographic Data Centre viawww.ccdc.cam.ac.uk\/data_request\/cif."},{"key":"e_1_2_4_51_2","unstructured":"\u00a0"},{"key":"e_1_2_4_52_2","doi-asserted-by":"crossref","first-page":"853","DOI":"10.1515\/znb-2008-0708","volume":"63","author":"Schmidbaur H.","year":"2008","journal-title":"Z. Naturfor. 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