𝔖 Bobbio Scriptorium
✦   LIBER   ✦

2′,7′-Di-1-naphthyl­spiro­[cyclo­propane-1,9′-fluorene]

✍ Scribed by Tang, Lei ;Ye, Jian-Chuan ;Wang, Zi-Xing ;Lu, Ping

Publisher
International Union of Crystallography
Year
2006
Tongue
English
Weight
145 KB
Volume
62
Category
Article
ISSN
1600-5368

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

2′,7′-Bis(4-methoxy­phen­yl)spiro­[cyclo
2′,7′-Bis(4-methoxy­phen­yl)spiro­[cyclo­propane-1,9′-9H-fluorene]
✍ Wang, Zi-Xing ;Lin, Hai-Yao ;Lu, Ping 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 118 KB

The title compound, C 29 H 24 O 2 , has mirror symmetry with the cyclopropane C atoms lying on the mirror plane. The fluorene system is essentially planar and makes dihedral angles of 91.43 (4) and 23.50 (6) with the cyclopropane and substituted benzene rings, respectively.

2a′-Chloro-3,8-dioxo-1′,2′,2a′,8a′-tetra
2a′-Chloro-3,8-dioxo-1′,2′,2a′,8a′-tetra­hydro­di­spiro­[cyclo­propane-1,1′-cyclo­buta­[b]­napthalene-2′,1′′-cyclo­propane]
✍ Wang, Lei ;Usman, Anwar ;Fun, Hoong-Kun ;Zhang, Yan ;Xu, Jian-Hua 📂 Article 📅 2003 🏛 International Union of Crystallography 🌐 English ⚖ 184 KB

In the title compound, C 16 H 13 ClO 2 , the tetrahydrobenzene ring adopts a boat conformation, and both cyclopropyl groups are orthogonal to the cyclobutane ring. The Cl atom shows positional disorder.

2a′,8a′-Di­chloro-3,8-dioxo-1′,2′,2a′,8a
2a′,8a′-Di­chloro-3,8-dioxo-1′,2′,2a′,8a′-tetra­hydro­di­spiro­[cyclo­propane-1,1′-cyclo­buta­[b]­naphthalene-2′,1′′-cyclo­propane]
✍ Usman, Anwar ;Fun, Hoong-Kun ;Wang, Lei ;Zhang, Yan ;Xu, Jian-Hua 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 256 KB

Single-crystal X-ray study T = 213 K Mean '(C±C) = 0.003 A Ê R factor = 0.078 wR factor = 0.199 Data-to-parameter ratio = 15.1 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

1-Acetyl-1,2-di­hydro-2-oxotri­spiro­[in
1-Acetyl-1,2-di­hydro-2-oxotri­spiro­[indole-3,2′-oxetane-3′,1′′; 4′,1′′′-di­cyclo­propane]
✍ Usman, Anwar ;Razak, Ibrahim Abdul ;Fun, Hoong-Kun ;Chantrapromma, Suchada ;Zhan 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 174 KB

Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.003 A Ê R factor = 0.062 wR factor = 0.176 Data-to-parameter ratio = 12.8 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.

(S)-2,2′-Bis­(di­cyclo­hexyl­phosphino­a
(S)-2,2′-Bis­(di­cyclo­hexyl­phosphino­amino)-1,1′-bi­naphthyl
✍ Guo, Rongwei ;Wang, Lailai ;Wu, Jing ;Choi, Michael C. K. ;Zhou, Zhongyuan 📂 Article 📅 2002 🏛 International Union of Crystallography 🌐 English ⚖ 222 KB

The the crystal structure of the title compound, C 44 H 58 N 2 P 2 , the molecule has a non-crystallographic twofold axis. The bond lengths and angles are within the expected ranges.