33440-88-9Relevant articles and documents
A comparative study of third-order nonlinear optical properties of silver phenylacetylide and related compounds via ultrafast optical kerr effect measurements
Teo,Xu,Zhong,He,Chen,Qian,Deng,Zou
, p. 6794 - 6801 (2001)
A comparative study of the third-order nonlinear optical properties, via the newly developed heterodyned optical Kerr effect (OHD-OKE) measurements, of silver phenylacetylide and related compounds is reported. [AgC≡CC6H5]n (1) was found to exhibit efficient third-order nonlinear optical susceptibility X(3) of 2.4 × 10-14 esu, and second hyperpolarizability γ of 9.07 × 10-32 esu. These results are compared with those of two related silver phenylacetylide compounds, namely, a double salt, (silver phenylacetylide)·(silver tert-butylthiolate) [AgC≡CC6H5·AgS (t-C4H9)]n complex (2), and a cluster, triphenylphosphine silver phenylacetylide tetramer, [(C6H5)3PAgC≡ CC6H5]4 (3), as well as that of the related organic polymer polyphenylacetylene (4). These four compounds represent different types of phenylacetylide derivatives: 1 is an organometallic polymer, 2 a polymeric double salt, 3 a discrete metal cluster, and 4 an organic polymer. It was found that the third-order optical nonlinear response was enhanced by the incorporation of silver d electrons into the delocalized conjugated organic π system, and its magnitude is highly dependent upon the extent of the π delocalization. Specifically, the relative magnitudes of X(3) and γ follow the order silver phenylacetylide polymer (1) > (silver phenylacetylide)·(silver tert-butylthiolate) double salt (2) > polyphenylacetylene polymer (4) > tetrameric (triphenylphosphine silver phenylacetylide)4 cluster (3). The observed trend may be attributed to the decreasing length of π conjugation. It is interesting to note that the incorporation of Ag(I) into the polymeric framework of polyphenylacetylene enhances the X(3) by 25-fold for the same degree of polymerization (n = 7). The signs of X(3) and γ, which are related to the response mechanisms, were found to be solvent dependent.
Anion-Templated Nanosized Silver Alkynyl Clusters: Cluster Engineering and Solution Behavior
Zhang, Shan-Shan,Su, Hai-Feng,Wang, Zhi,Wang, Lina,Zhao, Quan-Qin,Tung, Chen-Ho,Sun, Di,Zheng, Lan-Sun
, p. 3432 - 3437 (2017)
Assembly of nanosized polynuclear metal clusters from simple building blocks usually involves complicated self-organization processes and thus is a long-standing challenge. Here, we demonstrate the controllable assembly, single-crystal structures and solution behaviors of four molecular assemblies based on nanosized silver alkynyl clusters, formulated as {[(CrO4)2Cl@Ag42(PhC≡C)34(CF3COO)2]?CF3COO} (1), {(NH4)[(CrO4)2Cl@Ag42(PhC≡C)34(CrO4)(H2O)2]?2BF4?CH3OH}n (2), [(CrO4)@Ag22(PhC≡C)16(CF3SO3)4]n (3), and {[(CrO4)2@Ag31(PhC≡C)22(CF3SO3)4]?CF3SO3?2CH3OH?H2O}n (4). In the presence of concomitant CrO42? and Cl? templates, we could isolate a discrete cluster 1 and a polymeric chain-like compound 2 by using different silver salts. Both 1 and 2 have a similar 42-metallic cage, which traps two CrO42? and one Cl? as anion templates. Using sole CrO42? template, 3 and 4 were simultaneously isolated in a one-pot reaction. Both of them are 1D chain structures based on single CrO42? templated Ag18 and double CrO42? templated Ag30 clusters, respectively. HR-ESI-MS was used to study the solution behaviors of 1–4. This work has the following purposes: i) it presents the cluster engineering concept used in the assembly of polynuclear silver alkynyl clusters; ii) it exemplifies template effects from hetero and homo anions; and iii) it provides a controllable way to achieve assembly of silver alkynyl clusters.
An Alkynyl-Stabilized Pt5Ag22 Cluster Featuring a Two-Dimensional Alkynyl–Platinum “Crucifix Motif”
Shen, Hui,Mizuta, Tsutomu
, p. 17885 - 17888 (2017)
The “staple motif” has been widely applied to depict and predict the structures of thiolate or alkynyl-protected gold nanoclusters. By contrast, the composition, dimensions, configuration, and functionality of the platinum-ligand motif has remained completely unknown. Herein, we report the synthesis and crystal structure of a novel luminescent Pt5Ag22(C≡CPh)32 (1) cluster, in which two-dimensional and two-functional alkynyl–platinum “crucifix motif” was observed. Such a crucifix motif with one Pt center and four alkynyl groups in the same plane acts as a two-dimensional unit in the cluster and functions as both a protective cover and an intermediate joint.
AgN3-Catalyzed Hydroazidation of Terminal Alkynes and Mechanistic Studies
Bi, Xihe,Cao, Shanshan,Ji, Qinghe,Li, Huaizhi,Pang, Maolin,Yuan, Haiyan,Zhang, Jingping
supporting information, p. 7083 - 7091 (2020/05/14)
The hydroazidation of alkynes is the most straightforward way to access vinyl azides-versatile building blocks in organic synthesis. We previously realized such a fundamental reaction of terminal alkynes using Ag2CO3 as a catalyst. H
One-pot synthesis of 2,4-disubstituted quinolines via silver-catalyzed three-component cascade annulation of amines, alkyne esters and terminal alkynes
Li, Yunlan,Zhang, Qiurui,Xu, Xuefeng,Zhang, Xu,Yang, Yurong,Yi, Wei
supporting information, p. 965 - 970 (2019/03/13)
Described herein is a new and general method for one-pot synthesis of 2,4-disubstituted quinolines via silver-catalyzed [3 + 1 + 2] annulation of simple amines, alkyne esters and terminal alkynes. The versatile transformation might initiate with the facil
