ChemInform Abstract: Synthesis, 13C NMR, and X-Ray Crystal Structure of N6,N9- Octamethylenepurinecyclophane.

ChemInform ◽  
2010 ◽  
Vol 23 (36) ◽  
pp. no-no
Author(s):  
R. A. BELL ◽  
R. FAGGIANI ◽  
H. N. HUNTER ◽  
C. J. L. LOCK
Keyword(s):  
Crystal Structure ◽  
13C Nmr ◽  
X Ray

Solid state stereochemistry of crown ethers: X-ray crystal structure and 13C NMR studies of the LiNCS complex of 1,4,7,11-tetraoxacyclotetradecane

2000 ◽  
Vol 78 (3) ◽  
pp. 316-321
Author(s):  
G W Buchanan ◽  
A B Driega ◽  
G PA Yap
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Crown Ether ◽  
13C Nmr ◽  
Title Complex ◽  
Nmr Studies ◽  
Nmr Spectrum ◽  
X Ray ◽  
Large Amplitude Motion ◽  
C Nmr

The title complex is asymmetric in the crystal due to the spatial orientation of the NCS function. The space group has been determined to be P21 with a = 9.496(3), b = 8.736(3), c = 9.676(3) Å, β = 117.859(5)°, and Z = 2. The solid state 13C NMR spectrum is consistent with the lack of symmetry in the crystal and there is little evidence for large amplitude motion in the macrocycle as determined from the dipolar dephased spectrum.Key words: macrocyclic crown ether, lithium complex.

13C NMR analysis of isothioureas x-ray crystal structure of N-methyl-N′-phenyl-S-sulfomethylisothiourea

2010 ◽  
Vol 89 (6) ◽  
pp. 487-488 ◽  
Author(s):  
Gerrit L'abbé ◽  
André Willocx ◽  
Suzanne Toppet ◽  
Jean-Paul Declercq ◽  
Gabriel Cermain ◽  
...  
Keyword(s):  
Crystal Structure ◽  
13C Nmr ◽  
Nmr Analysis ◽  
X Ray ◽  
13C Nmr Analysis

A Domino Reaction for the Synthesis of Novel 1,3-Dihydrofuro[3,4-c]pyridines from Pyridoxal and Ketones

Synthesis ◽  
2020 ◽  
Vol 53 (02) ◽  
pp. 365-370
Author(s):  
Lucas Pizzuti ◽  
Izamara Casadia ◽  
Thalita O. Daher ◽  
Sidnei Moura ◽  
Davi F. Back ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Nmr Spectroscopy ◽  
13C Nmr ◽  
Room Temperature ◽  
13C Nmr Spectroscopy ◽  
Domino Reaction ◽  
Alkyl Aryl ◽  
1H And 13C Nmr ◽  
X Ray ◽  
Pyridine Series

A convenient domino route for the synthesis of novel 1,3-dihydrofuro[3,4-c]pyridines from pyridoxal and alkyl, aryl or heteroaryl ketones under basic conditions is reported. A series of nine derivatives is obtained in 53–90% yields after stirring reactants for 48 hours at room temperature. Most products are easily isolated by filtration followed by recrystallization from ethanol. All products were fully characterized by FTIR, HRMS, and 1H and 13C NMR spectroscopy. The X-ray crystal structure of a representative example of the 1,3-dihydrofuro[3,4-c]pyridine series is also presented.

scholarly journals Benzylidene-bis-(4-Hydroxycoumarin) and Benzopyrano-Coumarin Derivatives: Synthesis, 1H/13C-NMR Conformational and X-ray Crystal Structure Studies and In Vitro Antiviral Activity Evaluations

Molecules ◽  
2011 ◽  
Vol 16 (7) ◽  
pp. 6023-6040 ◽  
Author(s):  
Davorka Završnik ◽  
Samija Muratović ◽  
Damjan Makuc ◽  
Janez Plavec ◽  
Mario Cetina ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Antiviral Activity ◽  
13C Nmr ◽  
Coumarin Derivatives ◽  
X Ray

X-ray crystal structure and 13C NMR spectra of [WI2(CO)3(NCMe)2]

Polyhedron ◽  
1988 ◽  
Vol 7 (3) ◽  
pp. 245-247 ◽  
Author(s):  
Michael G.B. Drew ◽  
Paul K. Baker ◽  
Elaine M. Armstrong ◽  
Stuart G. Fraser
Keyword(s):  
Crystal Structure ◽  
13C Nmr ◽  
Nmr Spectra ◽  
13C Nmr Spectra ◽  
X Ray

Variable temperature 13C NMR study of some L(CO)3FeH(SiR3) (L = CO, P(OPh)3; R = Ph, Me, Cl) species. X-ray crystal structure of P(OPh)3(CO)3Fe(H)SiPh3

Polyhedron ◽  
1991 ◽  
Vol 10 (8) ◽  
pp. 841-849 ◽  
Author(s):  
John W. Connolly ◽  
Michael J. Hatlee ◽  
Alan H. Cowley ◽  
Paul R. Sharp
Keyword(s):  
Crystal Structure ◽  
13C Nmr ◽  
Variable Temperature ◽  
X Ray ◽  
Nmr Study

scholarly journals Structure of a Luminescent MOF-2 Derivative with a Core of Zn(II)-Terephthalate-Isoquinoline and Its Application in Sensing of Xylenes

Crystals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 344 ◽  
Author(s):  
Luis D. Rosales-Vázquez ◽  
Iván J. Bazany Rodríguez ◽  
Simón Hernández-Ortega ◽  
Víctor Sánchez-Mendieta ◽  
Alfredo R. Vilchis-Nestor ◽  
...  
Keyword(s):  
Crystal Structure ◽  
13C Nmr ◽  
Metal Organic Framework ◽  
Fluorescence Emission ◽  
Magic Angle Spinning ◽  
High Yield ◽  
Magic Angle ◽  
X Ray ◽  
Metal Organic ◽  
Angle Spinning

A new blue photoluminescent 2D metal–organic framework, 1, with formula {[Zn2(μ2-BDC)2(iQ)2]}∞ has been synthesized in a high yield under solvothermal conditions by reacting Zn(II) ions with 1,4-benzenedicarboxylic acid (H2BDC) and isoquinoline (iQ) in DMF. Compound 1 was thoroughly characterized by single-crystal X-ray diffraction, solid-state cross-polarization magic-angle spinning 13C NMR, X-ray powder diffraction, scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDS), and thermoanalysis. The crystal structure of 1 showed interpenetrated 2D frameworks consisting of dinuclear paddle-wheel cores Zn2; moreover, this material possessed thermostability up to 310 °C. The CPMAS 13C-NMR spectrum of 1 is consistent with the symmetry of the crystal structure. Luminescence studies showed that 1 strongly enhances its fluorescence emission in the presence of xylene isomers with a pronounced selectivity to p-xylene.

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