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2,2-[2,2′-Methyl­enebis(4-nitro­phenoxy)]-4,6-[2,2′-methyl­enebis(4-nitro­phenoxy)]-4,6-di­chloro-1,3,5,2λ5,4λ5,6λ5-tri­aza­tri­phospho­rine (spiro-ansa) aceto­nitrile

✍ Scribed by Öztürk, Levent ;Hökelek, Tuncer ;Dal, Hakan ;Kılıç, Zeynel

Publisher
International Union of Crystallography
Year
2001
Tongue
English
Weight
245 KB
Volume
58
Category
Article
ISSN
1600-5368

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✦ Synopsis

The title compound, C 26 H 16 Cl 2 N 7 O 12 P 3 .C 2 H 3 N, consists of a non-planar trimeric phosphazene ring and two bulky 2,2 Hmethylenebis(4-nitrophenoxy) side groups, two cis-Cl atoms, and an acetonitrile molecule as solvent. With respect to the corresponding values in the reference compound N 3 P 3 Cl 6 , the endocyclic angles around the P atoms are slightly changed, while two of the exocyclic angles are increased and the remaining one is decreased. This situation is different from that in other reported phosphazene derivatives.

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cis-ansa-2,4-Di­chloro-2,4-[2,2′-methyl­
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✍ Hökelek, Tuncer ;Dal, Hakan ;Kılıç, Zeynel 📂 Article 📅 2001 🏛 International Union of Crystallography 🌐 English ⚖ 217 KB

The title compound, C 25 H 18 Cl 2 N 5 O 6 P 3 , consists of a nonplanar trimeric phosphazene ring, one bulky 2,2 H -methylenebis(4-nitrophenoxy) side group, two cis-Cl atoms and two geminal phenyl groups. The PÐCl bond lengths are 1.9930 (12) and 1.9970 (12) A Ê , while the PÐN and PÐO distances ar

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Single-crystal X-ray study T = 150 K Mean '(C±C) = 0.003 A Ê R factor = 0.034 wR factor = 0.094 Data-to-parameter ratio = 10.0 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

6′,6′-Di­chloro-3,3′′-etheno-3,4,3′′,4′′
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✍ Tercan, Barış ;Hökelek, Tuncer ;Bilge, Selen ;Natsagdorj, Amgalan ;Demiriz, Şems 📂 Article 📅 2004 🏛 International Union of Crystallography 🌐 English ⚖ 305 KB

The title compound, C 16 H 16 Cl 2 N 5 O 2 P 3 , a cyclotriphosphazene, has a spiro±ansa±spiro architecture in which the bicyclic system is in the sofa conformation. Two P atoms and one N atom are capable of representing stereogenic centres.

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✍ Yazıcı, Serap ;Akdemir, Nesuhi ;Ağar, Erbil ;Kantar, Cihan ;Şenel, İsmet 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 139 KB

The asymmetric unit of the title compound, C 17 H 13 ClN 2 O, contains two independent molecules with no significant difference in their structures. The molecules are non-planar. The dihedral angle between the two benzene rings is 79.20 (8) in one molecule and 79.54 (8) in the other.