33440-88-9Relevant academic research and scientific papers
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.
Monocyclometalated gold(III) monoaryl complexes - A new class of triplet phosphors with highly tunable and efficient emission properties
Szentkuti, Alexander,Bachmann, Michael,Garg, Jai Anand,Blacque, Olivier,VenKatosan, Koushik
, p. 2585 - 2596 (2014)
Highly tunable and rich phosphorescent emission properties based on the stable monocyclometalated gold(III) monoaryl structural motif are reported. Monochloro complexes of the type cis-[(N^C)Au(C6H2(CF 3)3)(Cl)]
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.
Cyclopentadienyl-ruthenium and -osmium chemistry. XXXII. Some complexes containing tertiary phosphites: X-ray structures of RuCl2(η-C5H5) and of two isomers of RuCPh=C(CN)2>2(η-C5H5)
Bruce, Michael I.,Cifuentes, Marie P.,Snow, Michael R.,Tiekink, Edward R. T.
, p. 379 - 400 (1989)
Exchange of tertiary phosphites for PPh3 in RuCl(PPh3)2(η-C5H5) afforded RuCl2(η-C5H5) (R3=Me3, (CH2CF3)3, (CH2)3CEt).Conventional reactions of the P(OMe)3 complex afforded RuX2(η-C5H5) (X=H, C(CO2Me)=CH(CO2Me), SnCl3, C2Ph, *
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.
A practical and efficient method for late-stage deuteration of terminal alkynes with silver salt as catalyst
Wu, Ding-Chuan,Bai, Jing-Wen,Guo, Lei,Hu, Guang-Qi,Liu, Kai-Hui,Sheng, Fei-Fei,Zhang, Hong-Hai,Sun, Zheng-Yi,Shen, Kang,Liu, Xiang
supporting information, (2021/02/20)
A practical and efficient H/D exchange method for selective deuteration of terminal alkynes was disclosed. The reaction was simply performed with CF3COOAg as catalyst at room temperature, affording products with high level of deuterium incorporation. The excellent site-selectivity and promising functional group tolerance of this protocol enabled deuteration of pharmaceuticals and nature product derivatives.
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
N-Alkynylthio Phthalimide: A Shelf-Stable Alkynylthio Transfer Reagent for the Synthesis of Alkynyl Thioethers
Gao, Wen-Chao,Shang, Yu-Zhu,Chang, Hong-Hong,Li, Xing,Wei, Wen-Long,Yu, Xin-Zhang,Zhou, Rong
supporting information, p. 6021 - 6024 (2019/08/20)
A new kind of electrophilic alkynylthiolating reagent, called N-alkynylthio phthalimide, is designed and synthesized herein. This electrophilic sulfenylating reagent can be easily prepared in three steps from commercially available phthalimide and corresp
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
Organometallic Reactivity of [Silver(I)(Pyridine-Containing Ligand)] Complexes Relevant to Catalysis
Pedrazzini, Tommaso,Pirovano, Paolo,Dell'Acqua, Monica,Ragaini, Fabio,Illiano, Pasquale,Macchi, Piero,Abbiati, Giorgio,Caselli, Alessandro
supporting information, p. 5089 - 5098 (2015/11/03)
Silver(I) complexes of pyiridine-containing macrocyclic ligands (Pc-L) have already been demonstrated as active catalysts for some domino and multicomponent reactions. Here, we report new chiral [AgI(Pc-L)] cationic complexes that have been synthesized and fully characterized, including structural determination by single-crystal X-ray diffraction. The complexes show a rich coordination chemistry, demonstrating both the σ-philic (alcohol and nitrile coordination) and the π-philic (alkyne coordination) nature of silver. The η2 coordination mode of the naphthyl pendant arm of the ligands on silver has been observed in solution by NMR spectroscopic experiments. 2D NMR spectroscopy revealed the presence of positive cross peaks resulting from rotational processes and the rate of rotation was measured by using 2D exchange spectroscopy (EXSY).
