Synthesis and characterization of N-heterocyclic carbene–M⋯OEt2 complexes (M = Cu, Ag, Au). Analysis of solvated auxiliary-ligand free [(NHC)M]+ species

2021 ◽  
Author(s):  
Alvaro Muñoz-Castro ◽  
Guocang Wang ◽  
Tharun Teja Ponduru ◽  
H. V. Rasika Dias
Keyword(s):  
Computational Analysis ◽  
Heterocyclic Carbenes ◽  
Synthesis And Characterization ◽  
Auxiliary Ligand ◽  
Coinage Metal ◽  
Ligand Free

We report the synthesis, characterization and computational analysis of coinage metal-ether and related –OH2 complexes supported by N-heterocyclic carbenes (NHC), SIPr and Et2CAAC.

Synthesis and characterization of upconversion nanoparticles with shell structure and ligand-free hydrophilic modification

RSC Advances ◽  
2015 ◽  
Vol 5 (101) ◽  
pp. 83149-83154 ◽  
Author(s):  
Di Kang ◽  
Xiaoyan Song ◽  
Jinfeng Xing
Keyword(s):  
Rare Earth ◽  
Shell Structure ◽  
Synthesis And Characterization ◽  
Upconversion Nanoparticles ◽  
Core Shell ◽  
Hydrophilic Modification ◽  
Ligand Free ◽  
Core Shell Structure

Rare-earth upconversion nanoparticles (UCNPs) with α and β phases were prepared. UCNPs with core–shell structure were prepared and modified to be hydrophilic by ligand-free hydrophilic modification.

scholarly journals Synthesis and characterization of novel olefin complexes of palladium(0) with chelating bis(N-heterocyclic carbenes) as spectator ligands

Polyhedron ◽  
2018 ◽  
Vol 154 ◽  
pp. 382-389 ◽  
Author(s):  
T. Scattolin ◽  
L. Canovese ◽  
F. Visentin ◽  
C. Santo ◽  
N. Demitri
Keyword(s):  
Heterocyclic Carbenes ◽  
Synthesis And Characterization

Synthesis and Characterization of Silver(I), Gold(I), and Gold(III) Complexes Bearing Amino-Functionalized N-Heterocyclic Carbenes

2011 ◽  
Vol 30 (10) ◽  
pp. 2755-2764 ◽  
Author(s):  
Christoph Topf ◽  
Christa Hirtenlehner ◽  
Manfred Zabel ◽  
Manuela List ◽  
Michel Fleck ◽  
...  
Keyword(s):  
Heterocyclic Carbenes ◽  
Synthesis And Characterization

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

2013 ◽  
Vol 32 (11) ◽  
pp. 3135-3144 ◽  
Author(s):  
Animesh Das ◽  
Chandrakanta Dash ◽  
Mehmet Ali Celik ◽  
Muhammed Yousufuddin ◽  
Gernot Frenking ◽  
...  
Keyword(s):  
Family Group ◽  
Synthesis And Characterization ◽  
Coinage Metal ◽  
Coinage Metals ◽  
Alkyne Complexes

Synthesis and Characterization of Coinage Metal Aluminum Sulfur Species

2014 ◽  
Vol 137 (1) ◽  
pp. 162-164 ◽  
Author(s):  
Bin Li ◽  
Jiancheng Li ◽  
Herbert W. Roesky ◽  
Hongping Zhu
Keyword(s):  
Synthesis And Characterization ◽  
Sulfur Species ◽  
Coinage Metal ◽  
Metal Aluminum

Synthesis and characterization of N-silylated, C1-symmetric benzamidinates of lithium, sodium, and tin(II)

2006 ◽  
Vol 84 (2) ◽  
pp. 269-276 ◽  
Author(s):  
Floria Antolini ◽  
Peter B Hitchcock ◽  
Alexei V Khvostov ◽  
Michael F Lappert
Keyword(s):  
Nmr Spectra ◽  
Alkali Metals ◽  
Membered Ring ◽  
Molecular Structures ◽  
Synthesis And Characterization ◽  
Neutral Ligand ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ligand Free

The synthesis and characterization of complexes obtained from the reactions between Li[N-t-Bu(SiMe3)] (A) or the sodium analogue Na[N-t-Bu(SiMe3)] (B) and the cyanoarene RCN (R = Ph or 4-MeOC6H4) are discussed. These are the THF adduct [Li{µ-cis-N(t-Bu)C(Ph)N(SiMe3)}(THF)]2 (1), the TMEDA adduct Li[N(t-Bu)C(Ph)N(SiMe3)](TMEDA) (2), the neutral ligand-free lithium benzamidinate Li[N(t-Bu)C(C6H4OMe-4)N(SiMe3)] (3), and the THF adduct Li[N(t-Bu)C(C6H4OMe-4)N(SiMe3)](THF) (3a). The preparation and structure of the crystalline compound [Na{µ-cis-N(t-Bu)C(Ph)N(SiMe3)}(OEt2)]2 (4) is described. From the lithium benzamidinate 1 and Sn(II) chloride the tin(II) complex [Sn{N(t-Bu)C(Ph)N(SiMe3)}2] (5) was obtained. The molecular structures of the crystalline compounds 1, 4, and 5 were established by X-ray diffraction. In 1 and 4 the benzamidinato ligand is both chelating and bridging, with the Me3Si-substituted nitrogen atom as the bridging site. The central planar (MN)2 four-membered ring is a rhombus in 1, with almost equal Li—N bond lengths, whereas in 4 the bonds to Na(1) are significantly longer than those to Na(2). In 5, the ligand is N,N′-chelating. Key words: alkali metals, tin(II), benzamidinates, NMR spectra, X-ray structures.

scholarly journals Synthesis and Characterization of Ag(I) Complexes Derived from New N-Heterocyclic Carbenes

2019 ◽  
Vol 31 (5) ◽  
pp. 1149-1152
Author(s):  
Mohammed Mujbel Hasson ◽  
Basim H. Al-Zaidi ◽  
Ahmad H. Ismail
Keyword(s):  
Spectral Analysis ◽  
Heterocyclic Carbenes ◽  
Synthesis And Characterization ◽  
Silver Complexes ◽  
Imidazolium Salts ◽  
Imidazole Derivatives ◽  
In Situ Method ◽  
Transitional Metal

Two new unsymmetrical imidazolium salts viz., [1-(4-ethylphenyl)-3-propyl-1H-imidazole-3-ium bromide] (3) and [1-(2,6-dimethylphenyl)-3-propyl-1H-imidazole-3-ium bromide] (4) have been synthesized via the reaction of propyl bromide with imidazole derivatives, [1-(4-ethylphenyl)-1Himidazole] (1) and [1-(2,6-dimethylphenyl)-1H-imidazole] (2) in absence of solvent. Then two new N-heterocyclic carbene silver complexes (5 and 6) were prepared through the reaction of imidazoluim salts (3 and 4) as a source of N-heterocyclic carbene with Ag2O by in situ method. These complexes can be used in the future as a transfer agent for preparing other transitional metal carbine complexes (NHCs) via transmetallation method. The formation of these compounds was confirmed by spectral analysis.

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