A Reversible Polymorphic Phase Change Which Affects the Luminescence and Aurophilic Interactions in the Gold(I) Cluster Complex, [μ3-S(AuCNC7H13)3](SbF6) [J. Am. Chem. Soc. 2005, 127, 10838−10839].

Gussenhoven, Emily M.; Fettinger, James C.; Pham, David M.; Malwitz, and Mark M.; Balch, Alan L.

doi:10.1021/ja056393p

Cited by 11 publications

(15 citation statements)

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“…The SbF À 6 salt undergoes a phase transition upon cooling which leads to drastic changes in the emissive properties in the solid state. 104 Multiauration has also been demonstrated for mercaptanes RSH, which can be converted into molecules LAuSR and sulfonium salts [RS(AuL) n ] (nÀ1)+ (X À ) (nÀ1) (n = 2, 3). In all dinuclear cases (42) short intracationic Au-Au contacts have been observed, but in the trinuclear dications large quasitetrahedral angles, Au-S-Au angles, lead to long Au-Au distances that make strong interactions unlikely.…”

Section: Geminal Auration and The Clustering Of Gold Atoms At A Commo...mentioning

confidence: 99%

Aurophilic interactions as a subject of current research: an up-date

2012

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Recently accumulated experimental evidence for aurophilic interactions in and between molecular gold(I) compounds and the results of pertinent theoretical calculations are reviewed for the period from 2007 to mid-2011. The influence of the intra- and intermolecular bonding contacts between the closed-shell metal centres, Au-Au, on the molecular and crystal structures, and the consequences of these effects for the chemical and physical properties of gold compounds are summarized for the various classes of mono- and polynuclear systems. The literature survey builds on the contents of previous reviews and relates new experimental and theoretical findings to earlier observations (353 references).

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Section: Geminal Auration and The Clustering Of Gold Atoms At A Commo...mentioning

confidence: 99%

Aurophilic interactions as a subject of current research: an up-date

2012

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“…Balch and co‐workers reported the fascinating compound [(AuCNC 7 H 13 ) 3 (μ 3 ‐S)][SbF 6 ] ( 4 ), which exhibits a reversible single‐crystal‐to‐single‐crystal (SCSC) phase change upon cooling 16. The trinuclear [(AuCNC 7 H 13 ) 3 (μ 3 ‐S)] + cations (average intratrimer Au ··· Au distance 3.282 Å) are loosely connected through aurophilic interactions (average distance 3.559 Å) into a pseudo‐octahedral array of six gold atoms (Scheme ).…”

Section: Gold(i) and Gold(i)–heterometal Complexes With Tuneable Lmentioning

confidence: 99%

“…The room‐temperature emission spectrum shows a single intense orange‐red emission at 667 nm. At 77 K, two emission maxima at 490 and 680 nm were present in the emission spectrum 16…”

Section: Gold(i) and Gold(i)–heterometal Complexes With Tuneable Lmentioning

confidence: 99%

Stimuli‐Responsive Dynamic Gold Complexes

Jobbágy

Deák

2014

Eur J Inorg Chem

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The role of noncovalent interactions is reviewed in the context of the stimuli‐responsive behaviour of gold(I) and gold–heterometal complexes. These noncovalent interactions are often highly sensitive to physical (thermal, optical, electrical, mechanical, etc.) or chemical (solvents, guests, etc.) stimuli, which trigger alterations in molecular and crystal structures that lead to dynamic changes in the macroscopic properties of gold compounds. In this microreview, we have summarized some representative examples of gold(I) complexes that exhibit intriguing stimuli‐responsive properties such as thermochromic, mechanochromic, vapochromic and solvatochromic luminescence, as well as vapochromism and gas sorption. Stimuli‐responsive functional materials with specific properties have potential uses in various applications including chemical sensors, memory, data storage, security inks and separation technologies.

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“…For example, the emission of the gold cluster [μ 3 -S(AuCNC 7 H 13 ) 3 ] + is perturbed by a phase change upon cooling from room temperature. [12] At room temperature, the gold cluster crystallizes in an orthorhombic form and emits orange-red at 667 nm. Upon cooling to 150 K, the orthorhombic form converts into a monoclinic form, and an additional emission band appears at 490 nm.…”

Section: Introductionmentioning

confidence: 99%

Luminescent Thermochromism in a Gold(I)–Copper(I) Phosphine–Pyridine Complex

Chen

Catalano

2015

Eur J Inorg Chem

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The AuI complex [Au(Ph2PCH2py)2]BF4 (1) was prepared by mixing (tetrahydrothiophene)gold(I) chloride with 2‐[(diphenylphosphino)methyl]pyridine (Ph2PCH2py) in dichloromethane. The addition of [Cu(NCCH3)4]BF4 to 1 produced green‐luminescent [AuCu(Ph2PCH2py)2(NCCH3)2](BF4)2 (2). When crystals of 2 were exposed to air, two acetonitrile molecules were lost to form crystals of yellow‐luminescent [AuCu(Ph2PCH2py)2](BF4)2 (3). This simple solvent loss perturbs the environment around the CuI center, and the Au···Cu distance shortens from 3.3 to 2.8 Å. Crystallization of 2 or 3 from dichloromethane produced the two‐coordinate CuI–solvate complex, [AuCu(Ph2PCH2py)2](BF4)2·CH2Cl2 (3·CH2Cl2). Compound 3 exhibits temperature‐dependent emissions from 77 to 298 K (543 nm), 298 to 343 K (551 nm), and above 343 K (505 nm) that is reversed upon return to room temperature. The low‐temperature emission is typical of complexes with luminescent rigidochromic properties. However, based on differential scanning calorimetry, a phase change is responsible for the high‐temperature emission of 3.

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A Reversible Polymorphic Phase Change Which Affects the Luminescence and Aurophilic Interactions in the Gold(I) Cluster Complex, [μ₃-S(AuCNC₇H₁₃)₃](SbF₆) [J. Am. Chem. Soc. 2005, 127, 10838−10839].

Abstract: The signs of specific rotation of the two enantiomers of 3 in Figure S7 (bottom left) were inverted. The correct specific rotations are shown below:JA056608V

Cited by 11 publications

References 0 publications

Aurophilic interactions as a subject of current research: an up-date

Aurophilic interactions as a subject of current research: an up-date

Stimuli‐Responsive Dynamic Gold Complexes

Luminescent Thermochromism in a Gold(I)–Copper(I) Phosphine–Pyridine Complex

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