2,7-Dibromo-9,9-bis[(pyridin-1-ium-4-yl)methyl]fluorene dinitrate
نویسندگان
چکیده
In the title compound, C(25)H(20)Br(2)N(2) (2+)·2NO(3) (-), the cation lies on a twofold rotation axis which imposes disorder of the dibromo-fluorene unit. In addition, the unique nitrate anion is disordered over two general sites of equal occupancy. The crystal structure is stabilized by inter-molecular N-H⋯O hydrogen bonds.
منابع مشابه
Nanoparticles of low Optical Band Gap Conjugated Polymers
Sonogashira coupling of 9,9-bis(2-ethylhexyI)2,7-diethynyl-9H-fluorene (I) with 2,7-dibromo-9,9-bis(2ethylhexyl)-9H-fluorene (2) and dibromo-substituted electron accepting arylenes 5,7-bis(5-bromothiophen-2-yl)-2,3dihexylthieno[3,4-b)pyrazine (3), 4,7-bis(5-bromo-4-(2ethylhexyl)thiophene-2-yI)bis(benzothiadiazole) (4) or 4,9bis (5-bromo-4-{2-ethylhexyl)thiophen-2-yl)-6, 7dihexylthiadiazolo(3,4-...
متن کامل9,9-Dioctyl-2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-9H-fluorene
In the title mol-ecule, C(41)H(64)B(2)O(4), the fluorene unit is essentially planar and the two octyl chains attached to the central C atom inhibit the mol-ecule from engaging in inter-molecular aromatic inter-actions. One of the octyl chains adopts a fully extended conformation, whereas the second incorporates a single gauche conformation. Of the two pinacolatoboronate groups attached at the 2...
متن کامل2,2′-(9,9-Dioctyl-9H-fluorene-2,7-diyl)bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolane)
In the title compound, C(41)H(64)B(2)O(4), one of the five-membered rings has an envelope conformation, while the other, which may be affected by disorder, is nearly coplanar with the fluorene ring. The dihedral angle between the fluorene and dioxaborolane rings is 2.29 (1)°. Two of the methyl groups are disordered over two orientations in 0.67 (3):0.33 (3) and 0.568 (10):0.432 (10) ratios.
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The asymmetric unit of title co-crystal, C14H16N4S2 (2+)·2C7H3N2O6 (-)·4C7H4N2O6, comprises a centrosymmetric dipyridinium dication, a 2,6-di-nitro-benzoate anion and two independent 2,6-di-nitro-benzoic acid mol-ecules. The pyridin-ium rings are each approximately perpendicular to the central di-thio-amide unit [dihedral angle = 80.67 (12)°]. The carboxyl-ate/carb-oxy-lic acid groups are appro...
متن کامل4-[2-(Pyridin-1-ium-4-yl)ethyl]pyridin-1-ium bis(2,6-dinitrobenzoate)
The asymmetric unit of the title salt, C12H14N2 (2+)·2C7H3N2O6 (-), comprises half a 4-[2-(pyridin-1-ium-4-yl)eth-yl]pyridin-1-ium dication, being disposed about a centre of inversion, and a 2,6-di-nitro-benzoate anion, in a general position. In the anion, the carboxyl-ate group is inclined to the benzene ring [dihedral angle = 85.45 (9)°], whereas near-coplanar and twisted arrangements are fou...
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