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As revealed by X\u2010ray crystallography, all these dimers comprise dicationic moieties that are well\u2010separated from the weakly coordinating anions in the solid state. If <jats:bold>1<\/jats:bold> is allowed to react with AgNO<jats:sub>2<\/jats:sub> and LAuCl (L=CO or tetrahydrothiophene), respectively, the dimer [Ag<jats:sub>2<\/jats:sub>{Cp<jats:sub>2<\/jats:sub>Mo<jats:sub>2<\/jats:sub> (CO)<jats:sub>4<\/jats:sub>(\u03bc,\u03b7<jats:sup>2<\/jats:sup>:\u03b7<jats:sup>1<\/jats:sup>:\u03b7<jats:sup>1<\/jats:sup>\u2010P<jats:sub>2<\/jats:sub>)}<jats:sub>2<\/jats:sub>(\u03b7<jats:sup>2<\/jats:sup>\u2010NO<jats:sub>2<\/jats:sub>)<jats:sub>2<\/jats:sub>] (<jats:bold>5<\/jats:bold>) and the complex [AuCl{Cp<jats:sub>2<\/jats:sub>Mo<jats:sub>2<\/jats:sub>(CO)<jats:sub>4<\/jats:sub>(\u03bc,\u03b7<jats:sup>2<\/jats:sup>:\u03b7<jats:sup>1<\/jats:sup>\u2010P<jats:sub>2<\/jats:sub>)}] (<jats:bold>6<\/jats:bold>) are formed, which have also been characterised by X\u2010ray crystallography. In compounds <jats:bold>5<\/jats:bold> and <jats:bold>6<\/jats:bold>, the anions remain coordinated to the Group 11 metal centres. Spectroscopic data suggest that the dimers <jats:bold>3\u2009b<\/jats:bold>\u2013<jats:bold>h<\/jats:bold> display dynamic behaviour in solution and this is discussed by using the comprehensive results obtained for <jats:bold>3\u2009g<\/jats:bold> (M=Ag; X=Al{OC(CF<jats:sub>3<\/jats:sub>)<jats:sub>3<\/jats:sub>}<jats:sub>4<\/jats:sub>) as a basis. The interpretation of the experimental results is facilitated by density functional theory (DFT) calculations on <jats:bold>3\u2009g<\/jats:bold> (structures, energetics, NMR shielding tensors). The <jats:sup>31<\/jats:sup>P magic angle spinning (MAS) NMR spectra recorded for the dimers <jats:bold>3\u2009b<\/jats:bold> (M=Cu; X=PF<jats:sub>6<\/jats:sub>) and <jats:bold>3c<\/jats:bold> (M=Ag; X=BF<jats:sub>4<\/jats:sub>) as well as that of the previously reported one\u2010dimensional (1\u2009D) polymer [Ag<jats:sub>2<\/jats:sub>{Cp<jats:sub>2<\/jats:sub>Mo<jats:sub>2<\/jats:sub>(CO)<jats:sub>4<\/jats:sub>(\u03bc,\u03b7<jats:sup>2<\/jats:sup>:\u03b7<jats:sup>1<\/jats:sup>:\u03b7<jats:sup>1<\/jats:sup>\u2010P<jats:sub>2<\/jats:sub>)}<jats:sub>3<\/jats:sub>(\u03bc,\u03b7<jats:sup>1<\/jats:sup>:\u03b7<jats:sup>1<\/jats:sup>\u2010NO<jats:sub>3<\/jats:sub>)]<jats:sub><jats:italic>n<\/jats:italic><\/jats:sub>[NO<jats:sub>3<\/jats:sub>]<jats:sub><jats:italic>n<\/jats:italic><\/jats:sub> (<jats:bold>4<\/jats:bold>) are also discussed herein and the strong dependence of the chemical shift of the phosphorus atoms within each compound on subtle structural differences in the solid state is demonstrated. Furthermore, the X\u2010ray crystallographic and <jats:sup>31<\/jats:sup>P MAS NMR spectroscopic characterisation of a new polymorph of <jats:bold>1<\/jats:bold> is reported.<\/jats:p>","DOI":"10.1002\/chem.200700715","type":"journal-article","created":{"date-parts":[[2007,9,26]],"date-time":"2007-09-26T10:20:06Z","timestamp":1190802006000},"page":"282-295","source":"Crossref","is-referenced-by-count":63,"title":["Self\u2010Assemblies Based on [Cp<sub>2<\/sub>Mo<sub>2<\/sub>(CO)<sub>4<\/sub>(\u03bc,\u03b7<sup>2<\/sup>\u2010P<sub>2<\/sub>)]\u2014Solid\u2010State Structure and Dynamic Behaviour in Solution"],"prefix":"10.1002","volume":"14","author":[{"given":"Manfred","family":"Scheer","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurence\u2005J.","family":"Gregoriades","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Manfred","family":"Zabel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junfeng","family":"Bai","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ingo","family":"Krossing","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gunther","family":"Brunklaus","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hellmut","family":"Eckert","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2007,12,17]]},"reference":[{"key":"e_1_2_6_1_2","unstructured":"Recent review articles:"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ccr.2005.07.008"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1021\/ar980101q"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200300636"},{"key":"e_1_2_6_4_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200300636"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0010-8545(03)00126-7"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0010-8545(01)00407-6"},{"key":"e_1_2_6_7_2","unstructured":"\u00a0"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3757(20020301)114:5<820::AID-ANGE820>3.0.CO;2-V"},{"key":"e_1_2_6_8_3","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3773(20020301)41:5<783::AID-ANIE783>3.0.CO;2-J"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3757(20020517)114:10<1808::AID-ANGE1808>3.0.CO;2-0"},{"key":"e_1_2_6_9_3","doi-asserted-by":"publisher","DOI":"10.1002\/1521-3773(20020517)41:10<1737::AID-ANIE1737>3.0.CO;2-4"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1081119"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1002\/chem.200401117"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1002\/ejic.200500616"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200503511"},{"key":"e_1_2_6_13_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200503511"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200600815"},{"key":"e_1_2_6_14_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200600815"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200601546"},{"key":"e_1_2_6_15_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200601546"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1002\/ejic.200700092"},{"key":"e_1_2_6_17_2","unstructured":"\u00a0"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1021\/ic062052g"},{"key":"e_1_2_6_19_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.200701343"},{"key":"e_1_2_6_19_3","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200701343"},{"key":"e_1_2_6_20_2","unstructured":"\u00a0"},{"key":"e_1_2_6_21_2","doi-asserted-by":"publisher","DOI":"10.1016\/0022-328X(84)85105-0"},{"key":"e_1_2_6_22_2","doi-asserted-by":"publisher","DOI":"10.1002\/9780470132586.ch44"},{"key":"e_1_2_6_23_2","doi-asserted-by":"publisher","DOI":"10.1002\/9780470132555.ch66"},{"key":"e_1_2_6_24_2","doi-asserted-by":"publisher","DOI":"10.1002\/9780470132579.ch17"},{"key":"e_1_2_6_25_2","unstructured":"This work."},{"key":"e_1_2_6_26_2","unstructured":"\u00a0"},{"key":"e_1_2_6_27_2","doi-asserted-by":"publisher","DOI":"10.1039\/DT9850000125"},{"key":"e_1_2_6_28_2","doi-asserted-by":"publisher","DOI":"10.1071\/CH9901697"},{"key":"e_1_2_6_29_2","unstructured":"\u00a0"},{"key":"e_1_2_6_30_2","doi-asserted-by":"publisher","DOI":"10.1016\/0022-328X(84)80676-2"},{"key":"e_1_2_6_31_2","doi-asserted-by":"publisher","DOI":"10.1039\/DT9860001965"},{"key":"e_1_2_6_32_2","doi-asserted-by":"publisher","DOI":"10.1107\/S0108270189001484"},{"key":"e_1_2_6_33_2","first-page":"547","volume":"56","author":"Ellis D. 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