Results 41 to 50 of about 630 (149)

2,8-Dichloro-6H,12H-5,11-ethanodibenzo[b,f][1,5]diazocine

open access: yesActa Crystallographica Section E, 2008
In the molecule of the title compound, C16H14Cl2N2, the ethano-strapped 2,8-dichloro analogue of Tröger's base, the dihedral angle between the two benzene rings is 87.01 (3)°.
Masoud Faroughi   +2 more
doaj   +1 more source

Beyond the Simple Copper(II) Coordination Chemistry with Quinaldinate and Secondary Amines

open access: yesMolecules, 2020
Copper(II) acetate has reacted in methanol with quinaldinic acid (quinoline-2-carboxylic acid) to form [Cu(quin)2(CH3OH)]∙CH3OH (1) (quin− = an anionic form of the acid) with quinaldinates bound in a bidentate chelating manner.
Barbara Modec, Nina Podjed, Nina Lah
doaj   +1 more source

5,11-Dimethyldibenzo[b,f][1,5]diazocine-6,12(5H,11H)-dione

open access: yesActa Crystallographica Section E, 2008
In the molecule of the title compound, C16H14N2O2, an N,N′-dimethyldianthranilide, the two methyl groups are disordered over two positions; site occupation factors were kept fixed as 0.75:0.25 and 0.65:0.35.
Andrew C. Try   +2 more
doaj   +1 more source

Reversible phase transition in 8,19-dimethyl-2,3,8,19-tetraazapentacyclo[13.7.0.04,12.06,10.017,21]docosa-1(15),2,4(12),5,10,16,21-heptaene-7,9,18,20-tetrone

open access: yesActa Crystallographica Section E: Crystallographic Communications
The crystal structure of the title compound, C20H14N4O4, was previously reported at 220 K [Businski et al. (2025). Chem. Eur. J. A71, 3–8], where it crystallizes in the monoclinic space group P21/c with one crystallographically independent molecule in a ...
Christian Näther   +2 more
doaj   +1 more source

2,8-Dibromo-4,10-dichloro-6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine

open access: yesActa Crystallographica Section E, 2008
The title compound, C15H10Br2Cl2N2, a 2,8-dibromo-4,10-dichloro Tröger's base analogue derived from 4-bromo-2-chloroaniline, has a dihedral angle of 110.9 (10)° between the two aryl rings, the largest yet measured for a simple dibenzo ...
Andrew C. Try   +2 more
doaj   +1 more source

Diethyl 6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine-1,7-dicarboxylate

open access: yesActa Crystallographica Section E, 2009
In the molecule of the title compound, C21H22N2O4, the 1,7-diethyl ester analogue of Tröger's base, the dihedral angle between the two benzene rings is 93.16 (3)°; the molecule is C2 symmetric.
M. Delower H. Bhuiyan   +2 more
doaj   +1 more source

Dimethyl 6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine-2,8-diacetate

open access: yesActa Crystallographica Section E, 2008
The asymmetric unit of the title compound, C21H22N2O4, a Tröger's base analogue derived from methyl 4-aminophenylacetate, contains two crystallographically independent molecules with dihedral angles of 88.44 (5) and 88.68 (6)° ...
Andrew C. Try   +2 more
doaj   +1 more source

5,11-Ditosyl-5H,11H-dibenzo[b,f][1,5]diazocine-6,12-dione acetic acid hemisolvate

open access: yesActa Crystallographica Section E, 2013
The molecular structure of the title compound, C28H22N2O6S2·0.5CH3COOH, is built up from three fused rings, two six and one eight membered. The eight-membered ring shows a boat conformation and the dihedral angle between the two benzene groups ...
Najat Abbassi   +4 more
doaj   +1 more source

The Pyrolysis of 1,2,3,4,6,7-Hexathia-5,8-diazocine [PDF]

open access: yesBulletin of the Chemical Society of Japan, 1990
Abstract Crystals of 1,2,3,4,6,7-hexathia-5,8-diazocine (1,4-S6(NH)2) were transformed around 363 K with a molar enthalpy change of the transformation of 2.40±0.07 kJ mol−1. Crystal systems of the two forms of 1,4-S6(NH)2 were identified to be orthorhombic (α-form) and monoclinic (β-form) below and above this temperature.
Yoshiyuki Kudo   +2 more
openaire   +1 more source

Racemic 1,2,3,4,7,8,9,10-octafluoro-6H,12H-5,11-methanodibenzo[b,f][1,5]diazocine: an octafluorinated analogue of Tröger's base

open access: yesActa Crystallographica Section E, 2008
The title compound, C15H6F8N2, possesses a non-crystallographic twofold axis. The dihedral angle between the two benzene rings is 98.4 (2)°. The crystal structure involves intermolecular C—H...F hydrogen bonds.
Sergey Sergeyev   +3 more
doaj   +1 more source

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