Tetranitroquinodimethane (Tnq)—Electron-Deficient Prototype for a New Series of Organic Solid State Materials

1989 ◽  
Vol 173 ◽  
Author(s):  
David J. Vanderah ◽  
A. T. Nielsen ◽  
R. A. Hollins ◽  
Chris Baum
Keyword(s):  
Mass Spectrometry ◽  
Solid State ◽  
Title Compound ◽  
Radical Anion ◽  
H Nmr ◽  
Structural Assignment ◽  
Spectral Evidence ◽  
Vacuum Pyrolysis ◽  
Organic Solid ◽  
Solid State Materials

ABSTRACTRecently we have synthesized several new aryl compounds substituted with two or more trinitromethyl groups. Vacuum pyrolysis of one of these—±,±,±,±’,±’,±’-hexanitro-p-xylene (p-HNX)—gave the title compound via 1,6-elimination of N2O4. Structural assignment of TNQ is based on spectral evidence (UV, 1H NMR and mass spectrometry) and conversion to the known l,4-bis(bromodinitromethyl)benzene. Evidence for the formation of the TNQ radical anion has been obtained.

Darstellung und Kristallstruktur von [(Me3Si)2CH(i-Pr)InCl]2 / Synthesis and Crystal Structure of [(Me3Si)2CH(i-Pr)InCl]2

1991 ◽  
Vol 46 (11) ◽  
pp. 1539-1543 ◽  
Author(s):  
Bernhard Neumüller
Keyword(s):  
Crystal Structure ◽  
Mass Spectrometry ◽  
Solid State ◽  
Title Compound ◽  
Unit Cell ◽  
Synthesis And Crystal Structure ◽  
Space Group ◽  
Cell Parameters

The title compound 1 has been prepared by the reaction of i-PrInCl2 with LiCH(SiMe3)2 in diethylether at -30 °C. The colorless substance 1 was characterized by NMR, IR, and RE spectroscopy, as well as by mass spectrometry. 1 is dimer in solution and the solid state and crystallizes in the space group P21/c with the cell parameters a = 1206.4(3) pm, b = 905.7(2) pm, c = 1591.2(5) pm, and β = 101.18(2)°. The unit cell contains two centrosymmetrical dimeric molecules.

Reversible Luminescent "Off-On" Regulation Based on Tunable Photodimerization via Crystal-to-Cocrystal Transformation

2021 ◽  
Author(s):  
Yufei Wang ◽  
Hongxing Shang ◽  
Bao Li ◽  
Shimei Jiang
Keyword(s):  
Solid State ◽  
Photophysical Properties ◽  
Molecular Structures ◽  
Organic Solid ◽  
Solid State Materials ◽  
Organic Solid State

The photophysical properties of organic solid-state materials are inextricably linked to the molecular structures and packing modes. However, it is still a challenge to accurately tune the fluorescent color or...

Time-resolved color-changed long-afterglow for security systems based on metal-organic hybrids

2022 ◽  
Author(s):  
Jing Liu ◽  
Ziang Chen ◽  
Jia Hu ◽  
Hongxia Sun ◽  
Yan Liu ◽  
...  
Keyword(s):  
Solid State ◽  
Room Temperature ◽  
Room Temperature Phosphorescence ◽  
Security Systems ◽  
Time Resolved ◽  
Long Afterglow ◽  
Organic Solid ◽  
Metal Organic ◽  
Solid State Materials ◽  
Organic Solid State

Organic solid-state materials with p-RTP (persistent room-temperature phosphorescence) properties have been made infusive achievements. However, researches on metal-organic hybrids with p-RTP are limited, in which dual phosphorescent ones are relatively...

A Cocrystal Strategy to Tune the Luminescent Properties of Stilbene-Type Organic Solid-State Materials

2011 ◽  
Vol 123 (52) ◽  
pp. 12691-12694 ◽  
Author(s):  
Dongpeng Yan ◽  
Amit Delori ◽  
Gareth O. Lloyd ◽  
Tomislav Friščić ◽  
Graeme M. Day ◽  
...  
Keyword(s):  
Solid State ◽  
Luminescent Properties ◽  
Organic Solid ◽  
Solid State Materials ◽  
Organic Solid State

Dimeres Di(N-lithium–tert–butylamino)bis(dimethylamino)silan - [Si(N(CH3)2)2(NLiC(CH3)3)2]2 – Darstellung und Kristallstruktur / Dimeric Di(N -lithio-tert-butylamino)bis(dimethylamino)silane - [Si(N(CH3)2)2(NLiC(CH3)3)2]2 – Synthesis und Crystal Structure

2001 ◽  
Vol 56 (1) ◽  
pp. 90-94 ◽  
Author(s):  
Josef Engering ◽  
Eva-Maria Peters ◽  
Martin Jansen
Keyword(s):  
Crystal Structure ◽  
Mass Spectrometry ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Single Crystal ◽  
Title Compound ◽  
Solution Nmr ◽  
X Ray Diffraction ◽  
X Ray ◽  
Solution Nmr Spectroscopy

Abstract [Si(N(CH3)2)2(NLiC(CH3)3)2]2 results from the reaction of silicon tetrachloride with excess terf-butylamine, followed by halogen substitution with LiN(CH3)2, and treatment with n-butyllithium in hexane. The title compound, found to be dimeric in the solid state, was characterised by single crystal X-ray diffraction (triclinic, Pi , a = 10.208(2), b = 12.140(2), c = 15.658(3) Å , a = 79.02(3), ß = 82.80(3), γ = 67.19(3)°, Z = 2, C24H60Li4N8Si2 ), and by solid state and solution NMR-spectroscopy and mass spectrometry.

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