Organo-Lewis Acid Cocatalysts in Single-Site Olefin Polymerization—A Highly Acidic Perfluorodiboraanthracene

Metz, M.; Schwartz, David J.; Stern, Charlotte L.; Nickias, Peter N.; Marks, Tobin J.

doi:10.1002/(sici)1521-3757(20000403)112:7<1368::aid-ange1368>3.0.co;2-h

Cited by 24 publications

(3 citation statements)

References 32 publications

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“…The reaction of the chloroborane (C 6 F 5 ) 2 BCl with 8-lithio-N,N-dimethyl-1-naphthylamine (1) affords a five-membered B/N ring system with a rigid naphthalene backbone (2). Single-crystal X-ray diffraction has revealed a strained ring system with an intramolecular dative B-N bond length of 1.742(2)Å.…”

Section: Resultsmentioning

confidence: 99%

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An Intramolecular Boron Nitrogen Lewis Acid Base Pair on a Rigid Naphthyl Backbone

Winkelhaus¹,

Neumann²,

Mitzel

2012

Zeitschrift Für Naturforschung B

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Section: Resultsmentioning

confidence: 99%

“…Ortho-substituted benzenes [2], peri-substituted naphthalene [3 -6] and 1,8-substituted anthracene [7,8] offer promising applications as such backbones in the field of host-guest chemistry [9]. Furthermore, these frameworks can induce unusual interactions between different functionalities.…”

Section: Introductionmentioning

confidence: 99%

An Intramolecular Boron Nitrogen Lewis Acid Base Pair on a Rigid Naphthyl Backbone

Winkelhaus¹,

Neumann²,

Mitzel

2012

Zeitschrift Für Naturforschung B

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“…Moreover, the ability of B atoms to incorporate into extended -electron systems has been exploited for the development of conductive polymers and in organic lightemitting diodes (OLEDs; Chai et al, 2009;Januszewski et al, 2011;Kessler et al, 2011). The use of perfluoro-5,10-dichloroand 5,10-di(pentafluorophenyl)-5,10-dihydroboranthrene as co-catalysts in olefin polymerization has also been reported (Metz et al, 2000). In addition, the analogous derivatives with the 6,13-diborapentacene ring system have been applied as ntype organic semiconductors (Chen et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Competition between hydrogen and halogen bonding in the structures of 5,10-dihydroxy-5,10-dihydroboranthrenes

Durka

Luliński

Jarzembska

et al. 2014

Acta Crystallogr Sect B

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X-ray crystallographic and computational studies are reported for a series of boranthrenes, substituted with halogen atoms. The role of competitive hydrogen (O-H...O, O-H...F, C-H...O) and halogen (Cl...Cl, O...Br, F...F) bonding interactions on the molecular arrangement in the crystal structures is discussed. The structural analysis and calculations reveal that the O-H...O hydrogen bond in the unsubstituted derivative 5,10-dihydroxy-5,10-dihydroboranthrene, C12H10B2O2, is of moderate strength (ca -20 kJ mol(-1)), but weaker than that in the related thiophene derivative 4,8-dihydro-4,8-dihydroxy-p-diborino[2,3-b:5,6-b]dithiophene, C8H6B2O2S2 (ca -40 kJ mol(-1)). This is due to shielding of the OH group by the H atoms in the β-position of the boranthrene unit. Structural diversity derived from the flexibility of the O-H...O hydrogen bond facilitates the occurrence of other competitive interactions. For instance, in the 1,6-difluoro derivative, C12H8B2F2O2, the crystal packing results from O-H...F and F...F interactions. In turn, the 1,6-dibromo derivative, C12H8B2Br2O2, is dominated by Br...O halogen-bond interactions. In the most interesting case, the 1,6-dichloro derivative, C12H8B2Cl2O2, molecular disorder leads to the formation of two different supramolecular arrangements co-existing in the crystal lattice, one based on the Cl...Cl and C-H...O bonds, and the other stabilized by O-H...O hydrogen bonds. Calculations performed with density-functional theory (DFT; CRYSTAL09) and PIXEL methodologies show that both lattices are characterized by similar energy values (ca -100 kJ mol(-1)). A mixed arrangement with random or short-range-ordered molecular orientations can also be expected.

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Die ersten nichtkoordinierenden Dendrimer-Polyanionen - neuartige Cokatalysatoren für die metallocenkatalysierte Olefinpolymerisation

et al. 2001

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Organo-Lewis Acid Cocatalysts in Single-Site Olefin Polymerization—A Highly Acidic Perfluorodiboraanthracene

Cited by 24 publications

References 32 publications

An Intramolecular Boron Nitrogen Lewis Acid Base Pair on a Rigid Naphthyl Backbone

An Intramolecular Boron Nitrogen Lewis Acid Base Pair on a Rigid Naphthyl Backbone

Competition between hydrogen and halogen bonding in the structures of 5,10-dihydroxy-5,10-dihydroboranthrenes

Die ersten nichtkoordinierenden Dendrimer-Polyanionen - neuartige Cokatalysatoren für die metallocenkatalysierte Olefinpolymerisation

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