Understanding gold chemistry through relativity

Schmidbaur, Hubert; Cronje, Stephanie; Djordjevic, Bratislav; Schuster, Oliver

doi:10.1016/j.chemphys.2004.09.023

Cited by 164 publications

(121 citation statements)

References 78 publications

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“…Each silver atom adopts a distorted trigonal bipyramidal structure. The inter-silver distance of 2.8415(11) A is significantly shorter than the sum of their van der Waals radii (3.44 A) suggesting a ligand-supported argentophilic interaction, which can also occur in the absence of supporting ligands [19,20], similar to the well-studied aurophilic interactions [21,22].…”

Section: Molecular Structuresmentioning

confidence: 86%

Co-ligand effects in the catalytic activity of Pd(II)–NHC complexes

Yeung

Huynh

2011

Journal of Organometallic Chemistry

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Section: Molecular Structuresmentioning

confidence: 86%

Co-ligand effects in the catalytic activity of Pd(II)–NHC complexes

Yeung

Huynh

2011

Journal of Organometallic Chemistry

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“…Examples of dinuclear complexes with carbon donor ligands bridging the two gold centers connected through aurophilic interactions include cyclopentadienyl [169] dicyanomethane [170], cyano(phenylthiolato)methylidene (Figure 2.36a), nitro (phenylsulfonyl)methylidene [171], 2,3,6-trifluorophenyl [172], ethoxycarbonyl-(triphenylphosphoranylidene)-methyl [173], (2-pyridyl)-tri-p-tolylphosphinemethylene [174], triphenylphosphonio(2-pyridyl)methylene [175], bis(diphenylphoshino) methylidene (Figure 2.36b) [176] [179]. 1,2-bis(phenylene)ethane coordinates two gold atoms connected through aurophilic interactions to one carbon or each phenyl fragment [180].…”

Section: Complexes With Bridging Monodentate Ligandsmentioning

confidence: 99%

Gold–Gold Interactions

Crespo

2008

Modern Supramolecular Gold Chemistry

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This chapter focuses mainly on closed shell gold(I) atoms which are found to feel attraction among themselves. This attraction is able to modify expected geometries or support one-, two-or three-dimensional arrays and also leads to interesting properties. Closed shell metal cations are expected to repel each other. Nevertheless, an important number of examples containing [d 8 -d 10 -s 2 ] interactions are known. Particularly strong evidence has been accumulated on the attraction between two or more d 10 shells. In the case of gold(I) such attraction between two or more monovalent gold(I) ions in compounds has been observed structurally for a long time. In these situations the gold centers approach each other to a distance of between 2.7 and 3.3 Å. This range includes the distance between gold atoms in gold metal and approaches, or even overlaps with the range of distances found in the few real Au-Au single bonds. Schmidbaur coined the name aurophilic attraction in 1990 and defined it as the unprecedented affinity between gold atoms even with closed-shell electronic configurations and equivalent electrical charges [1]. Since that moment, aurophilicity has become one of the hot topics in gold chemistry, at first with the aim of understanding such interaction, more recently because of the observation that it may play an important role in interesting properties, thus understanding and modulating aurophilic interactions could help to govern these properties, which include the optical behavior. Although different origins are possible for the luminescent emissions of coordination complexes, such as intraligand transitions (ILT), ligand to metal or metal to ligand charge transfer transitions (LMCT, MLCT) and metal centered (MCT) transitions, in many luminescent gold complexes the emissions have been related to the presence of aurophilic interactions.Information about aurophilicity and chemical situations in which it is observed may be found in different works that may be classified as those which analyse closed shell interactions in general [2], those focused on aurophilicity [1,3], and others which analyze the role of these interactions in coordination [4] and organometallic gold Modern Supramolecular Gold Chemistry: Gold-Metal Interactions and Applications. Edited by Antonio Laguna

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“…박막 측온저항체 제작에 사용된 금속은 산화도 서열 마지막에 위치하여 온도의 증가에도 산화가 거의 발생 하지 않는 금(Au)을 사용하였다 (11) . 측온저항체의 형상 Resistance measurement for increasing temperature and its repeatability.…”

Section: 서 론unclassified

Fabrication and Performance Evaluation of Thin Film RTD Temperature Sensor Array on a Curved Glass Surface

Ahn¹,

Kim²,

Park³

et al. 2011

Journal of the Korean Society of Visualization

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Abstract. This paper presents a novel direct fabrication method of the thin metal film RTD temperature sensor array on an arbitrary curved surface by using MEMS technology to measure a distributed temperature field up to 300 o C without disturbing a fluid flow. In order to overcome the difficulty in the three dimensional photography of sensor patterning, the UV pre-irradiated photosensitive dry film resist technology has been developed newly. This method was applied to the fabrication of the temperature sensor array on a glass tube, which is arranged parallel and transverse to a main flow. Gold was used as a temperature sensing material. The resistance change was measured in a thermally controlled oven by increasing the environmental temperature. The linear increase in resistance change and a constant slope were obtained. Also, the sensitivity of each RTD temperature sensor was evaluated.

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Understanding gold chemistry through relativity

Cited by 164 publications

References 78 publications

Co-ligand effects in the catalytic activity of Pd(II)–NHC complexes

Co-ligand effects in the catalytic activity of Pd(II)–NHC complexes

Gold–Gold Interactions

Fabrication and Performance Evaluation of Thin Film RTD Temperature Sensor Array on a Curved Glass Surface

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