Switchable Synthesis of Sulfoxides and α-Alkoxy-β-ketothioethers Regulated by Temperature in a Selectfluor–Methanol System

2021 ◽  
Author(s):  
Jiateng Wang ◽  
Mengxia Liu ◽  
Yue Zhang ◽  
Gehua Bi ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Methanol System

Simple Reduction of Heteroaromatic Esters to Alcohols Using a Sodium Borohydride—Methanol System.

ChemInform ◽  
2006 ◽  
Vol 37 (15) ◽  
Author(s):  
Nubia Boechat ◽  
Jorge Carlos Santos da Costa ◽  
Jorge de Souza Mendonca ◽  
Karla Ceodaro Paes ◽  
Elisa Lopes Fernandes ◽  
...  
Keyword(s):  
Sodium Borohydride ◽  
Simple Reduction ◽  
Methanol System

scholarly journals Disorder of the dimeric TCNQ–TCNQ unit in the crystal structure of [Ni(bpy)3]2(TCNQ–TCNQ)(TCNQ)2·6H2O (TCNQ is 7,7,8,8-tetracyanoquinodimethane)

2017 ◽  
Vol 73 (1) ◽  
pp. 8-12
Author(s):  
Juraj Černák ◽  
Juraj Kuchár ◽  
Michal Hegedüs
Keyword(s):  
Crystal Structure ◽  
Radical Anion ◽  
Title Complex ◽  
Molar Ratio ◽  
Water Molecules ◽  
Aqueous Methanol ◽  
Solvent Water ◽  
Hydrogen Bonding Interactions ◽  
Methanol System ◽  
Anion Radicals

Crystallization from an aqueous methanol system composed of Ni(NO3)2, 2,2′-bipyridine (bpy) and LiTCNQ (TCNQ is 7,7,8,8-tetracyanoquinodimethane) in a 1:3:2 molar ratio yielded single crystals of bis[tris(2,2′-bipyridine-κ2N,N′)nickel(II)] bis(7,7,8,8-tetracyanoquinodimethane radical anion) bi[7,7,8,8-tetracyanoquinodimethanide] hexahydrate, [Ni(C10H8N2)3]2(C24H8N8)(C12H4N4)2·6H2O or [Ni(bpy)3]2(TCNQ–TCNQ)(TCNQ)2·6H2O. The crystal structure comprises [Ni(bpy)3]2+complex cations, two centrosymmetric crystallographically independent TCNQ·−anion radicals with π-stacked exo groups, and an additional dimeric TCNQ–TCNQ unit which comprises 75.3 (9)% of a σ-dimerized (TCNQ–TCNQ)2−dianion and 24.7 (9)% of two TCNQ·−anion radicals with tightly π-stacked exo groups. The title complex represents the first example of an NiIIcomplex containing a σ-dimerized (TCNQ–TCNQ)2−dianion. Disordered solvent water molecules present in the crystal structure participate in hydrogen-bonding interactions.

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