The title compound, C(13)H(16)N(3)O(+)·PF(6) (-), which has an imide group in the imidazolium cation, is a new ionic liquid above its melting point. Two neighbouring mol-ecules are connected by a weak non-classical C-H⋯O hydrogen bond with the formation of centrosymmetric 14-membered dimers.

Crystalline samples of three N-aroyl-1,2,4-dithiazolidine-3,5-diones have been prepared as the first examples of a novel class of compound that displays the reactivity of an acyl isocyanate when treated with nucleophiles.

In the title compound, CH3OC(O)NHP(O)(OCH3)2, the P atom has a slightly distorted tetra-hedral configuration. The mixed imide moiety can be described as cisoid-transoid in which the two opposing dipoles (P=O and C=O) are oriented with a O=C⋯P=O torsion angle of 150.88(18)°. In the crystal, molecules are linked by pairs of N-H⋯O hydrogen bonds, forming inversion dimers.

The title compound, C(33)H(3)F(20)N(3)O(4), is a highly fluorinated organic imide that was isolated as an unexpected product from the reaction of 2,6-diamino-pyridine with 2,3,4,5,6-penta-fluoro-benzoyl chloride in a 1:2 molar ratio. The mol-ecule is located on a twofold axis and one of its symmetry-independent 2,3,4,5,6-penta-fluoro-benzoyl groups is disordered over two sets of sites, the occu...

In the title compound, C(16)H(22)Cl(4)N(2)O(2)S, the two imide groups adopt a trans arrangement relative to the central thienyl ring, so the four terminal 2-chloro-ethyl arms adopt different orientations. In the crystal, mol-ecules are linked by weak C-H⋯Cl and C-H⋯O hydrogen bonds into a three-dimensional network.

We report the synthesis of a soluble perylene imide benzimidazole (PIBI) and its structural, thermotropic, optical and electrochemical characterization with emphasis on discotic liquid crystalline properties.

Substituted imide and amide derivatives were conveniently prepared from the reaction of isocyanates with o-iodobenzoates and haloarenes catalyzed by the NiBr2(dppe)/dppe/Zn system in moderate to good yields with excellent tolerance of functional groups.

In the title compound, C(12)H(13)NO(2), the dihedral angle between the aromatic benzene ring and the imide segment is 67.7 (1)°. The mol-ecules in the crystal are packed into layered chains along the c axis.

Addition of an equal molar quantity of R- (R = Me, SiMe3) to complex (Nacnac)Ti=NAr(OTf) (Nacnac- =[ArNC(tBu)]2CH, Ar = 2,6-iPr2C6H3) forms the imido alkyl (Nacnac)Ti=NAr(R), which can be readily protonated to afford [(Nacnac)Ti=NAr(L)]+ (L = THF, Et2O, eta1-C6H5NMe2), or treated with B(C6F5)3 to afford the zwitterion (Nacnac)Ti=NAr(micro-CH3)B(C6F5)3.