Photodimerization of anthracene derivatives in their neat solid state and in solid molecular compounds

CrystEngComm ◽  
2011 ◽  
Vol 13 (13) ◽  
pp. 4376 ◽  
Author(s):  
I. Zouev ◽  
Den-Ke Cao ◽  
T. V. Sreevidya ◽  
M. Telzhensky ◽  
M. Botoshansky ◽  
...  
Keyword(s):  
Solid State ◽  
Anthracene Derivatives ◽  
Molecular Compounds

scholarly journals Commenting on the photoreactions of anthracene derivatives in the solid state

CrystEngComm ◽  
2019 ◽  
Vol 21 (20) ◽  
pp. 3127-3136 ◽  
Author(s):  
Tommaso Salzillo ◽  
Aldo Brillante
Keyword(s):  
Solid State ◽  
Photochemical Reactions ◽  
Anthracene Derivatives ◽  
Intramolecular Vibrations ◽  
Intermolecular Vibrations

The photochemical reactions of anthracene derivatives have been reviewed by means of a micro-Raman technique, monitoring at the same time and on the very same spot, the molecular (intramolecular vibrations) and the lattice (intermolecular vibrations) transformations.

AN INFRARED STUDY OF TRIMETHYLAMINE OXIDE, ITS HYDRATE, AND ITS HYDROCHLORIDE

1961 ◽  
Vol 39 (6) ◽  
pp. 1214-1220 ◽  
Author(s):  
Paul A. Giguère ◽  
David Chin
Keyword(s):  
Solid State ◽  
Electron Diffraction ◽  
Hydrogen Bonds ◽  
Infrared Spectra ◽  
Diffraction Data ◽  
Electron Diffraction Data ◽  
Infrared Study ◽  
X Ray ◽  
Trimethylamine Oxide ◽  
Molecular Compounds

The infrared spectra of trimethylamine oxide, its hydrate, and its hydrochloride in the solid state were measured over the range 300 to 3500 cm−1 to ascertain the nature of the bonds in these compounds. From the observed stretching frequencies, 937 cm−1 for N—O and 945 cm−1 for C—N, the corresponding bond lengths are calculated to be 1.44 and 1.50 Å in agreement with X-ray and electron diffraction data. Both these frequencies remain unchanged in the hydrate and the hydrochloride as could be expected for molecular compounds. However, in the hydrochloride most of the evidence points to an ionic constitution. In both the hydrate and the hydrochloride the hydrogen bonds are particularly strong presumably because of the formal charges.

Aminkomplexe von Silber(I)-disulfonylamiden, Teil I: Sekund¨are Amine [1]

2011 ◽  
Vol 66 (5) ◽  
pp. 449-458
Author(s):  
Eva-Maria Zerbe ◽  
Christoph Wölper ◽  
Peter G. Jones
Keyword(s):  
Solid State ◽  
Hydrogen Bonds ◽  
Crystal Structures ◽  
Secondary Amine ◽  
Linear Arrays ◽  
Bond Angles ◽  
Bond Lengths ◽  
Ionic Compounds ◽  
State 1 ◽  
Molecular Compounds

We report the crystal structures of five amine-complexed silver(I) disulfonylamides of composition L2AgX (L = secondary amine, X = disulfonylamide anion) [1: bis(2,2,6,6-tetramethylpiperidine)- silver(I) dimesylamide, 2: bis(2,2,6,6-tetramethylpiperidine)(1,1,3,3-tetraoxo-1,3,2-benzodithiazolido) silver(I), 3: bis(diethylamine)(dimesylamido)silver(I), 4: bis(diethylamine)silver(I) 1,1,3,3-tetraoxo- 1,3,2-benzodithiazolide, 5: bis(dicyclohexylamine)silver(I) 1,1,3,3-tetraoxo-1,3,2-benzodithiazolide]. In the solid state 1, 4 and 5 are ionic compounds, whereas 2 and 3 appear to be molecular, but with long Ag-Ndisulfonylamide bonds (ca. 2.5 Å ), almost linear Namine-Ag-Namine bond angles (171, 158°) and S-N bond lengths more typical of purely ionic disulfonylamides. The packing of these complexes is governed by the formation of chains via motifs of Ag・ ・ ・O contacts and classical hydrogen bonds. The interaction motifs vary slightly depending on the steric demand of the amine substituents. For the molecular compounds, either new motifs appear (3) or intramolecular classical hydrogen bonds are formed, and linear arrays of molecules are generated by non-classical hydrogen bonds (2)

Syntheses, Solid State Structures and Photochemistry of α,ω-Bis-[(1,8-dichloroanthracen-10-yl)dimethylsilyl]alkanes

Synthesis ◽  
2018 ◽  
Vol 50 (15) ◽  
pp. 3041-3047 ◽  
Author(s):  
Norbert Mitzel ◽  
Philipp Niermeier ◽  
Jan-Hendrik Lamm ◽  
Marvin Linnemannstöns ◽  
Beate Neumann ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Uv Light ◽  
X Ray Diffraction ◽  
X Ray ◽  
Anthracene Derivatives ◽  
Elimination Reactions ◽  
New Compounds ◽  
Solid State Structures

Starting from 10-bromo-1,8-dichloroanthracene, a series of 1,8-dichlorinated anthracene derivatives, flexibly bridged in position 10 by –Me2Si– and –Me2Si–(CH2) n –SiMe2– linker units, were synthesised. The linked anthracenes were generated by converting (1,8-dichloroanthracen-10-yl)lithium with chlorosilanes in salt-elimination reactions. The bichromophors were tested in UV light induced photo reactions. None of the new compounds yielded any intra- or intermolecular photoproduct. All α,ω-(dimethylsilyl)alkane-linked bisanthracenes decomposed to give 1,8-dichloro-9-hydroxyanthracen-10(9H)-one in the presence of oxygen. A completely different behaviour was shown by the bisanthracenyldimethylsilane, undergoing a 9,10:3′,4′-photocyclomerisation reaction. The new compounds were characterised by NMR spectroscopy, mass spectrometry and in most cases by X-ray diffraction studies.

New anthracene derivatives integrating high mobility and strong emission

2018 ◽  
Vol 6 (48) ◽  
pp. 13257-13260 ◽  
Author(s):  
Jinfeng Li ◽  
Lei Zheng ◽  
Lingjie Sun ◽  
Chenguang Li ◽  
Xiaotao Zhang ◽  
...  
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
High Mobility ◽  
Strong Emission ◽  
Anthracene Derivatives

Two new anthracene derivatives were designed and synthesized. Ant-Th-Ph and Ant-ThPh show high single crystal mobilities of 1.1 cm2 V−1 s−1 and 4.7 cm2 V−1 s−1. Moreover, strong solid state emission was determined to be 36.52% and 33.32% for Ant-Th-Ph and Ant-ThPh respectively.

Pyridyl-substituted anthracene derivatives with solid-state emission and charge transport properties

2016 ◽  
Vol 4 (16) ◽  
pp. 3621-3627 ◽  
Author(s):  
Jie Liu ◽  
Weigang Zhu ◽  
Ke Zhou ◽  
Zongrui Wang ◽  
Ye Zou ◽  
...  
Keyword(s):  
Solid State ◽  
Charge Transport ◽  
Transport Properties ◽  
Anthracene Derivatives

2,6-Di-pyridyl substituted anthracene derivatives for use as emissive charge transport materials.

1,8,10-Substituted Anthracenes – Hexafunctional Frameworks via Head-to-Tail Photodimerisation

Synthesis ◽  
2018 ◽  
Vol 51 (07) ◽  
pp. 1623-1632
Author(s):  
Norbert Mitzel ◽  
Philipp Niermeier ◽  
Jan-Hendrik Lamm ◽  
Jan-Hendrik Peters ◽  
Beate Neumann ◽  
...  
Keyword(s):  
Solid State ◽  
Uv Irradiation ◽  
13C Nmr ◽  
Nmr Spectra ◽  
13C Nmr Spectra ◽  
1H And 13C Nmr ◽  
Anthracene Derivatives ◽  
Almost All ◽  
Solid State Structures

Several 1,8,10-functionalised anthracene derivatives and a couple of 1,8,9-functionalised anthracene analogous, bearing alkynyl substituents at positions 1 and 8 were synthesised and their photochemistry investigated in UV irradiation experiments. Almost all compounds could be converted into their 9,10:10′,9′-head-to-tail photodimers completely excluding the formation of the corresponding head-to-head isomers. Working under non-inert conditions led to formation of endoperoxides in some cases. Furthermore, a non-classical [4π+2π] photodimer was obtained from 1,8,10-tris[(trimethylsilyl)ethynyl]anthracene with one of the alkynyl substituents involved in the photoreaction. The 1H and 13C NMR spectra of all classical and non-classical photodimers were compared with those of the endoperoxides identifying characteristic shifts for the atoms at positions 9 and 10. Moreover, solid-state structures were determined for one or more of each representative.

The use of Soluble Metal-Polyselenide Complexes as Precursors to Binary and Ternary Solid Metal Selenides

1990 ◽  
Vol 180 ◽  
Author(s):  
S. Dhingra ◽  
M. G. Kanatzidis
Keyword(s):  
Solid State ◽  
Inert Atmosphere ◽  
Gravimetric Analysis ◽  
Thermal Gravimetric ◽  
Electron Microscopic ◽  
X Ray ◽  
Molecular Precursor ◽  
Metal Selenides ◽  
Molecular Compounds

ABSTRACTThe use of several soluble metal polychalcogenides to prepare solid state materials is presented. Thermal gravimetric analysis (TGA) data, under inert atmosphere, of the molecular compounds (Ph4P)2[Cd(Se4)2], (Ph4P)4[Cu2Se14], (Ph4P)2[Cu4Se12], (Ph4P)4[In2Se21] and (Et4N)3[M3Se15], (M=In, TI), show that the corresponding binary solid state compounds are formed as single phases at temperatures as low as 530°C. We have grown films of CdSe, Cu2-xSe, β-In2Se3, TISe and CuInSe2 using these complexes as precursors. The films were prepared by pyrolysis of green precursor films, cast from DMF solutions. CuInSe2 was prepared by co-thermolysis of Cu/Sex and In/Sex complexes. The chemical, X-ray, spectroscopic and electron microscopic characterization of these molecular precursor-derived films as well as their charge transport characterization is reported.

Structural effects on the solid-state photodimerization of 5-chloro and 5-nitro-2(1H)-pyridone in molecular compounds

2011 ◽  
Vol 22 (5) ◽  
pp. 1105-1112 ◽  
Author(s):  
Thekku Veedu Sreevidya ◽  
Gilad Golden ◽  
Noam Saper ◽  
Jared Feldman ◽  
Mark Botoshansky ◽  
...  
Keyword(s):  
Solid State ◽  
Structural Effects ◽  
Molecular Compounds
Sign in / Sign up

Export Citation Format

Share Document