| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Sobolev, Alexandre
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (11/11 displayed)
- 2023Structure of Bis(Lidocaine) Tetrachloridoferrate(III) Chloride
- 2023Inert Transition Metal Ion Complexes in Organic Synthesiscitations
- 2021Uranyl complexes of p-t-butylcalix[8]arene as H-bond acceptors—subtle effects of the donorscitations
- 2021Crystal structure of hexakis(N, N-dimethylformamide-κ O)iron(III) μ-chlorido-bis(trichloridocadmium)citations
- 2020Structure Reassignment of Echinosulfone A and the Echinosulfonic Acids A-D Supported by Single-Crystal X-ray Diffraction and Density Functional Theory Analysiscitations
- 2020Structural Systematics of Lanthanide(iii) Picrate Solvatescitations
- 2020Synthesis and Structures of Bis- A nd Tris-(triphenylarsine)gold(i) Iodides
- 2019Crystal structures of an imidazo[1,5-a]pyridinium-based ligand and its (C13H12N3)(2)[CdI4] hybrid saltcitations
- 2008Nanoporous materials based on heteroleptic bilayers built up from bisphosphonium, p-sulfonatocalix[4]arene ionscitations
- 2007Variable temperature Hirshfeld surface analysis of interdigitated calix[6]arene bearing O-alkyl C18 linear chainscitations
- 2003Cation movement and phase transitions in KTP isostructures; X-ray study of sodium-doped KTP at 10.5 Kcitations
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article
Synthesis and Structures of Bis- A nd Tris-(triphenylarsine)gold(i) Iodides
Abstract
<p>The title compounds [(Ph<sub>3</sub>As)<sub>2</sub>AuI] and [(Ph<sub>3</sub>As)<sub>3</sub>AuI] have been crystallized from equimolar solutions of Bu<sub>4</sub>NAuI<sub>2</sub> and AsPh<sub>3</sub> in dimethylformamide and structurally characterized by single crystal X-ray diffraction studies. [(Ph<sub>3</sub>As)<sub>2</sub>AuI] crystallizes in space group C2/c, Z 4, and is isomorphous with other [(Ph<sub>3</sub>E)<sub>2</sub>MX] (MX = coinage metal(i) salt) arrays, with the Au-I bond being disposed on a crystallographic 2-axis: Au-I, As 2.7008(2), 2.4337(2) Å, As-Au-As, I 125.736(8)°, 117.132(4)° (153 K). [(Ph<sub>3</sub>As)<sub>3</sub>AuI] crystallizes as a triclinic phase in space group CH19340_IE1.gif, Z 4, and is isomorphous with [(Ph<sub>3</sub>Sb)<sub>3</sub>CuI] and [(Ph<sub>3</sub>P)<sub>3</sub>AgI]: Au-As 2.4847-2.5049(10), Au-I 2.8518(8), 2.8597(7) Å with As-Au-As, I 109.67(3)-115.97(3)°, 101.33(2)-106.85(3)°. A second '[(Ph<sub>3</sub>As)<sub>3</sub>AuI]' product was obtained as a co-crystalline phase in space group P2<sub>1</sub>/n containing [(Ph<sub>3</sub>As)<sub>3</sub>AuI], and [(Ph<sub>3</sub>As)<sub>2</sub>AuI] accompanied by an additional unbound Ph<sub>3</sub>As molecule, i.e. [(Ph<sub>3</sub>As)<sub>3</sub>AuI]·[(Ph<sub>3</sub>As)<sub>2</sub>AuI·Ph<sub>3</sub>As], with structural parameters closely similar to those for the corresponding separate [(Ph<sub>3</sub>As)<sub>3</sub>AuI] and [(Ph<sub>3</sub>As)<sub>2</sub>AuI] complexes described above. Comparison of the bond lengths for these and related complexes show that they are generally consistent with the 'gold is smaller than silver' phenomenon caused by relativistic orbital contraction effects in gold, but the results also show that the magnitude of this effect is dependent on the nature of the metal-ligand bonds involved, and on changes in the metal coordination environment, which can in some circumstances yield trends in which the effect on particular bonds is partially masked or even reversed.</p>