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1,15-Di­aza-3,4:12,13-dibenzo-5,8,11-trioxa­cyclo­hepta­decane hemihydrate

✍ Scribed by Hökelek, Tuncer ;Bilge, Selen ;Kılıç, Zeynel

Publisher
International Union of Crystallography
Year
2003
Tongue
English
Weight
309 KB
Volume
59
Category
Article
ISSN
1600-5368

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✍ Wang, Yan ;Liu, Gang ;Xie, Ling ;Wang, Ji-De 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 141 KB

In the cation of the title compound, C~22~H~34~N~3~O~3~ ^3+^·3Br^−^, a 20-membered N~3~O~3~ donor-type macrocyclic ligand, the mean of all nine N...O distances is 5.775 (2) Å and the dihedral angle between the two benzene rings is 33.5 (2)°. N—H...Br hydrogen bonding helps to stabilize the crystal s

Synthesis and X-Ray Structural Studies o
Synthesis and X-Ray Structural Studies of ‘4,7,13-Trioxa-1,10-diaza-5,6-benzocyclopentadecane-2,9-dione’ ( = 5,6,9,10-Tetrahydro-2H, 8H-benzo[b][1,4,10]trioxa[7,13]diazacyclopentadecene-311(4H,12H)-dione) and ‘4,7,13,16-Tetraoxa-1,10-diaza-5,6-benzocyclooctadecane-2,9-dione’ ( = 5,6,8,9,12,13-Hexahydro-2H,11H-benzo[b][1,4,10,13]tetraoxa- [7,16]diazacyclooctadecene-3,14(4H, 15H)-dione)
✍ Przemyslaw Gluziński; Janusz Jurczak; Janusz W. Krajewski; Piotr Sałański; Tomas 📂 Article 📅 1992 🏛 John Wiley and Sons 🌐 German ⚖ 306 KB 👁 1 views

## Abstract The molecular structures of the title compounds 3 and 5 were investigated by NMR and X‐ray structural methods. The NMR results suggest two equivalent halves for both molecules. The X‐ray study shows an approximate mirror plane for 3 and an approximate twofold axis for a significant port