Tris(alkyne) and Bis(alkyne) Complexes of Coinage Metals: Synthesis and Characterization of (cyclooctyne)3M+ (M = Cu, Ag) and (cyclooctyne)2Au+ and Coinage Metal (M = Cu, Ag, Au) Family Group Trends

Das, Animesh; Dash, Chandrakanta; Çelik, Mehmet Ali; Yousufuddin, Muhammed; Frenking, Gernot; Dias, H. V. Rasika

doi:10.1021/om400073a

Cited by 65 publications

(43 citation statements)

References 97 publications

(134 reference statements)

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“…As determined by X-ray crystallography, complex 1 features two Me 6 C 6 ligands coordinated to Cu through h 2 interactions. The Cu À C bond lengths are 2.092(2) and 2.192 (2) , and are comparable with those previously reported for h 2arene, [13,22,30] alkyne, [31] and alkene [32] complexes of copper.…”

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confidence: 89%

A Copper(I)–Arene Complex With an Unsupported η⁶ Interaction

et al. 2015

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Addition of PR 3 (R = Ph or OPh) to [Cu(h 2 -Me 6 C 6 ) 2 ][PF 6 ] results in the formation of [(h 6 -Me 6 C 6 )Cu-(PR 3 )][PF 6 ], the first copper-arene complexes to feature an unsupported h 6 arene interaction. A DFT analysis reveals that the preference for the h 6 binding mode is enforced by the steric clash between the methyl groups of the arene ligand and the phenyl rings of the phosphine co-ligand.

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confidence: 89%

A Copper(I)–Arene Complex With an Unsupported η⁶ Interaction

et al. 2015

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“…Previous works have also reported that when metal ions coordinate to the CC bond, the frequency of the CC stretching vibration decreases. [37,38] The appearance of a new subpeak at 2160 cm −1 in our experiments indicates an interaction between lead ions and the diyne links. Note that in the graphdiyne powder sample we used, only the diyne bonds exposed to the surface participated in the adsorption process and contributed to the redshift of the CC stretching peak.…”

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confidence: 66%

Graphdiyne Filter for Decontaminating Lead‐Ion‐Polluted Water

Liu

Zhou

Gao

et al. 2017

Adv Elect Materials

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into the environment is essential. Various techniques have been applied to eliminate heavy metals, such as chemical precipitation, [1,2] ion exchange, [3,4] adsorption, [5] electrochemical treatment, [6] and membrane filtration. [7] Among these methods, adsorption is considered to be an effective and widely used strategy with numerous advantages, such as generality, high efficiency, relatively low cost, and possible regeneration of the adsorbent. Adsorption is realized through van der Waals forces, electrostatic attraction, ion exchange, or chemical binding between metal ions and adsorbents. Much effort has been made to develop new adsorbents and improve the performance of existing adsorbents. Recently, carbon materials, such as active carbons, [8] graphene, [9] and carbon nanotubes, [10] have been regarded as promising candidates for the adsorption of heavy metal ions due to their high specific surface areas and strong interactions with metal ions. The adsorption capacity of these carbon materials toward metal ions can be significantly increased through oxidation. [11,12] Graphdiyne is a new 2D carbon material that is composed of sp-and sp 2 -hybridized carbon atoms. [13,14] This material has attracted great attention due to its impressive properties, such as high carrier mobility, [15] high nonlinear optical susceptibility, [16] low thermal conductivity, [17] and uniformly distributed pores, which are defined by the atomic structure of graphdiyne. Graphdiyne has been proposed as a promising material for application in electronic devices, energy storage, [18] gas separation, [19,20] metal-free catalysis, [21] water purification, [22,23] etc. A number of studies have examined the synthesis of this material, and graphdiyne with different morphologies [24][25][26][27] and oligomeric subunits of graphdiyne [13,28] have been achieved. Various applications of these materials have been demonstrated by taking advantage of the electrical conductivity, holetransport properties, and morphological characteristics of graphdiyne. [29][30][31][32] The acetylenic links in graphdiyne strongly interact with metal ions (Figure 1a), which can be utilized to adsorb metal ions from water. This material shows a different manner of adsorption than that of carbon adsorbents examined in previous work, in which oxygen-containing groups are generally regarded as the adsorption sites. Herein, we present the almost complete removal of lead ions from water by using a The decontamination of water polluted with heavy metal ions is of worldwide concern. Among various treatment approaches to remove metal ions from water, adsorption is regarded as an efficient method, and a variety of materials have been applied as adsorbents for the removal of metal ions from polluted water. Recently, carbon nanomaterials have been examined as alternative adsorbents due to their high specific surface areas, high removal efficiency, and strong interactions with metal ions. Graphdiyne, a new kind of carbon allotrope composed of sp-and sp 2 -hybridized carbon atoms...

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“…[1,5,6] An area of major research focus in recent years has been the chemistry of isolable alkyne-gold [13,14] and alkene-gold [13,[15][16][17] complexes since they serve as useful models for key intermediates believed to present in the above mentioned processes. There are several structurally characterized, auxiliary ligand supported and auxiliary ligand free goldalkyne [14,[18][19][20][21][22][23][24][25][26] and gold-alkene adducts presently known. N-heterocyclic carbene ligands are particularly useful in this regard.…”

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confidence: 99%