Structure of 1,7-diphenyl-m-carborane

Astakhin, A. V.; Romanov, V. V.; Гусев, А. И.; Калинин, В. Н.; Zakharkin, L. I.; Los, M. G.

doi:10.1007/bf00753989

Cited by 3 publications

(4 citation statements)

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“…The Ph‐carborane (C cage −C Ph ) distance in 2A and in 4A (1.510(2) and 1.515(2) Å, respectively) are consistent with the experimental values of 1.51 Å and 1.52 Å reported for 1,7‐diphenyl‐ m ‐carborane [50] and also with the DFT calculated values (1.512 Å). In the molecular structure of 4A the phenyl rings assume an almost ideal staggered (18°) conformation relative to the p ‐carborane cage (observed 17.3°), while in the structure of 2A the phenyl ring nearly eclipses the C cage −B bond (6.6°).…”

Section: Resultssupporting

confidence: 90%

Photophysical Behavior of Self‐Organizing Derivatives of 10‐ and 12‐Vertex p‐Carboranes, and their Bicyclo[2.2.2]octane and Benzene Analogues

Jakubowski

Januszko

Tilford

et al. 2023

Chemistry A European J

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Four series of isostructural derivatives of 3‐ring liquid crystalline derivatives containing p‐carboranes (12‐vertex A, and 10‐vertex B), bicyclo[2.2.2]octane (C), or benzene (D) as the variable structural element were investigated for their mesogenic behavior and electronic interactions. Comparative studies demonstrated that the effectiveness of elements A–D in stabilization of the mesophase typically increases in the order: B

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Section: Resultssupporting

confidence: 90%

Photophysical Behavior of Self‐Organizing Derivatives of 10‐ and 12‐Vertex p‐Carboranes, and their Bicyclo[2.2.2]octane and Benzene Analogues

Jakubowski

Januszko

Tilford

et al. 2023

Chemistry A European J

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“…The structure of the parent closo carborane, 1,7-Ph2-1,7-CeBioHl0, has already been reported (Astakhin, Romanov, Gusev, Kalinin, Zakharkin & Los, 1977) but is of limited precision (R = 0.15). A substantial number of interesting results have recently been obtained using the {7,8-Ph2-7,8-C2B9H9} ligand, in which the cage-bound phenyl groups are adjacent not only to each other but also to a ligated metal fragment (e.g.…”

Section: Commentmentioning

confidence: 94%

“…

The previous determination of the structure of the title molecule, ClaH20Bl0 [Astakhin, Romanov, Gusev, Kalinin, Zakharkin & Los (1977). The structure of the parent closo carborane, 1,7-Ph2-1,7-CeBioHl0, has already been reported (Astakhin, Romanov, Gusev, Kalinin, Zakharkin & Los, 1977) but is of limited precision (R = 0.15). Strukt.

…”

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confidence: 98%

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Redetermination of 1,7-Diphenyl-1,7-dicarba-closo-dodecaborane(12)

Rosair¹,

Welch²,

Weller³

1996

Acta Crystallogr C

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The previous determination of the structure of the title molecule, ClaH20Bl0 [Astakhin, Romanov, Gusev, Kalinin, Zakharkin & Los (1977). Zh. Strukt. Khim. 18,[406][407][408] with R = 0.15 has been superseded by the present determination which has R = 0.06. CommentWe are currently investigating the structural and chemical consequences of introducing deliberate overcrowding into heteroborane polyhedra. A substantial number of interesting results have recently been obtained using the {7,8-Ph2-7,8-C2B9H9} ligand, in which the cage-bound phenyl groups are adjacent not only to each other but also to a ligated metal fragment (e.g. Gr~idler, Reed, Welch & Weller, 1996). In contrast, relatively few studies have so far been reported involving the {7,9-Ph2-7,9-C2B9H9} ligand. The structure of the parent closo carborane, 1,7-Ph2-1,7-CeBioHl0, has already been reported (Astakhin, Romanov, Gusev, Kalinin, Zakharkin & Los, 1977) but is of limited precision (R = 0.15). To establish an accurate structure of this molecule against which to discuss the structures of future derivatives, we herein report an accurate redetermination of the title compound, (I). O3 O =BH O=C

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Carboranes

Onak¹

1980

B Boron Compounds

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Structure of 1,7-diphenyl-m-carborane

Cited by 3 publications

References 4 publications

Photophysical Behavior of Self‐Organizing Derivatives of 10‐ and 12‐Vertex p‐Carboranes, and their Bicyclo[2.2.2]octane and Benzene Analogues

Photophysical Behavior of Self‐Organizing Derivatives of 10‐ and 12‐Vertex p‐Carboranes, and their Bicyclo[2.2.2]octane and Benzene Analogues

Redetermination of 1,7-Diphenyl-1,7-dicarba-closo-dodecaborane(12)

Carboranes

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