𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Crystal and molecular structure of newly synthesized 2,3,2′,3′-Bis{8″,11″-dioxa[4.3.3]propella(3″,4″)}biphenyl

✍ Scribed by Grochowski, Jacek ;Jamrozik, Janusz ;Serda, Paweł ;Zesławski, Wojciech

Publisher
John Wiley and Sons
Year
1995
Tongue
English
Weight
249 KB
Volume
1995
Category
Article
ISSN
0947-3440

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The title compound 5 was obtained from 2,2′,3,3′‐tetramethylbiphenyl in a multi‐step reaction sequence leading to the bis(propellane). X‐ray structure analysis proved the identity of bis(propellane). In the solid state the molecule possesses roughly a twofold symmetry axis perpendicular to the biphenyl bond. The conformation of the molecule is determined by a 53.5(1)° torsional angle between the biphenyl planes. The propellane bond is parallel to the phenyl plane in both symmetric parts of the molecule, what implies a boat conformation of the fused six‐membered rings.

📜 SIMILAR VOLUMES

Syntheses and Crystal Structures of Er2(
Syntheses and Crystal Structures of Er2(SeO3)3 and Dy3(SeO3)4F
✍ Ina Krügermann; Mathias S. Wickleder 📂 Article 📅 2002 🏛 Elsevier Science 🌐 English ⚖ 437 KB

The decomposition of Er 2 (SeO 4 ) 3 in the presence of LiF in a sealed gold ampoule at 8701C yielded single crystals of Er 2 (SeO 3 ) 3 . The triclinic crystal structure (P 1 1; Z ¼ 2; a ¼ 698:2ð1Þ; b ¼ 800:6ð1Þ; c ¼ 895:0ð1Þ pm; a ¼ 71:38ð1Þ; b ¼ 70:13ð1Þ; c ¼ 65:87ð1Þ1; R all ¼ 0:0364) contains t

Crystal and molecular structures of atro
Crystal and molecular structures of atropisomeric N-aryl-1,2,3,4-tetrahydro-3,3-dimethyl-2,4-quinolinediones
✍ Mario Cetina; Nada Košutić-Hulita; Ante Nagl; Mladen Mintas 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 393 KB 👁 1 views

## Abstract The crystal structures of __N__‐aryl‐1,2,3,4‐tetrahydro‐3,3‐dimethyl‐2,4‐quinolinediones bearing methoxy‐ (**1**), methyl‐ (**2**), and chloro‐ (**3**) substituents in 2′‐position of the phenyl ring have been determined by X‐ray crystal structure analysis. The heterocyclic ring in **1–3