scholarly journals Synthesis and structural characterization of inverse-coordination clusters from a two-electron superatomic copper nanocluster

2018 ◽  
Vol 9 (33) ◽  
pp. 6785-6795 ◽  
Author(s):  
Kiran Kumarvarma Chakrahari ◽  
Rhone P. Brocha Silalahi ◽  
Jian-Hong Liao ◽  
Samia Kahlal ◽  
Yu-Chiao Liu ◽  
...  
Keyword(s):  
Structural Characterization ◽  
Main Group ◽  
Group Element ◽  
Copper Clusters ◽  
Main Group Element

Cuboctahedral copper clusters containing a twelve-coordinated main group element (Cl, Br, S) at the center have been synthesized and characterized.

Catalytic Fluorination of Boron Compounds at a Bismuth Redox Platform

2019 ◽  
Author(s):  
Oriol Planas ◽  
Feng Wang ◽  
Markus Leutzsch ◽  
Josep Cornella
Keyword(s):  
Transition Metal ◽  
Main Group ◽  
Group Element ◽  
Oxidation States ◽  
Boron Compounds ◽  
Main Text ◽  
Main Group Element ◽  
Rational Ligand Design ◽  
Supplementary Material

The ability of bismuth to maneuver between different oxidation states in a catalytic redox cycle, mimicking the canonical organometallic steps associated to a transition metal, is an elusive and unprecedented approach in the field of homogeneous catalysis. Herein we present a catalytic protocol based on bismuth, a benign and sustainable main-group element, capable of performing every organometallic step in the context of oxidative fluorination of boron compounds; a territory reserved to transition metals. A rational ligand design featuring hypervalent coordination together with a mechanistic understanding of the fundamental steps, permitted a catalytic fluorination protocol based on a Bi(III)/Bi(V) redox couple, which represents a unique example where a main-group element is capable of outperforming its transition metal counterparts.<br>A main text and supplementary material have been attached as pdf files containing all the methodology, techniques and characterization of the compounds reported.<br>

Catalytic Fluorination of Boron Compounds at a Bismuth Redox Platform

2019 ◽  
Author(s):  
Oriol Planas ◽  
Feng Wang ◽  
Markus Leutzsch ◽  
Josep Cornella
Keyword(s):  
Transition Metal ◽  
Main Group ◽  
Group Element ◽  
Oxidation States ◽  
Boron Compounds ◽  
Main Text ◽  
Main Group Element ◽  
Rational Ligand Design ◽  
Supplementary Material

The ability of bismuth to maneuver between different oxidation states in a catalytic redox cycle, mimicking the canonical organometallic steps associated to a transition metal, is an elusive and unprecedented approach in the field of homogeneous catalysis. Herein we present a catalytic protocol based on bismuth, a benign and sustainable main-group element, capable of performing every organometallic step in the context of oxidative fluorination of boron compounds; a territory reserved to transition metals. A rational ligand design featuring hypervalent coordination together with a mechanistic understanding of the fundamental steps, permitted a catalytic fluorination protocol based on a Bi(III)/Bi(V) redox couple, which represents a unique example where a main-group element is capable of outperforming its transition metal counterparts.<br>A main text and supplementary material have been attached as pdf files containing all the methodology, techniques and characterization of the compounds reported.<br>

scholarly journals New Main-Group-Element-Richnido-Octahedral Cluster System: Synthesis and Characterization of [Et4N][Fe2(CO)6(μ3-As){μ3-EFe(CO)4}2]

2016 ◽  
Vol 55 (13) ◽  
pp. 6679-6684 ◽  
Author(s):  
Desmond E. Schipper ◽  
Djamila Ikhlef ◽  
Samila Khalal ◽  
Jean-Yves Saillard ◽  
Kenton H. Whitmire
Keyword(s):  
Main Group ◽  
Cluster System ◽  
Group Element ◽  
Synthesis And Characterization ◽  
Octahedral Cluster ◽  
System Synthesis ◽  
Main Group Element

scholarly journals Synthesis and Structural Characterization of Two New Main Group Element Carboranylamidinates

Inorganics ◽  
2019 ◽  
Vol 7 (3) ◽  
pp. 41 ◽  
Author(s):  
Phil Liebing ◽  
Nicole Harmgarth ◽  
Florian Zörner ◽  
Felix Engelhardt ◽  
Liane Hilfert ◽  
...  
Keyword(s):  
Lone Pair ◽  
Main Group ◽  
Group Element ◽  
X Ray Diffraction ◽  
Metal Centers ◽  
Monomeric Species ◽  
X Ray ◽  
Main Group Element

Two new main group element carboranylamidinates were synthesized using a bottom-up approach starting from o-carborane, ortho-C2B10H12 (1, = 1,2-dicarba-closo-dodecaborane). The first divalent germanium carboranylamidinate, GeCl[HLCy] (3, [HLCy]− = [o-C2B10H10C(NCy)(NHCy)]−, Cy = cyclohexyl), was synthesized by treatment of GeCl2(dioxane) with 1 equiv. of in situ-prepared Li[HLCy] (2a) in THF and isolated in 47% yield. In a similar manner, the first antimony(III) carboranylamidinate, SbCl2[HLiPr] (4, [HLiPr]− = [o-C2B10H10C(NiPr)(NHiPr)]−), was obtained from a reaction of SbCl3 with 1 equiv. of Li[HLiPr] in THF (56% yield). The title compounds were fully characterized by analytical and spectroscopic methods as well as single-crystal X-ray diffraction. Both compounds 3 and 4 are monomeric species in the solid state, and the molecular geometries are governed by a stereo-active lone pair at the metal centers.

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