Hydrogen bonding in two solid phases of phenazine–chloranilic acid (1/1) determined at 170 and 93 K

Abstract

Supplementary data for this paper are available from the IUCr electronic archives (Reference: BM3017). Services for accessing these data are described at the back of the journal.

Calorimetric and dielectric study of organic ferroelectrics, phenazine-chloranilic acid, and its bromo analog

“…2 ͑NQR͒ of a 35 Cl nucleus. The crystal below 136 K was reported to have essentially the same structure as that at 160 K, 10,11 which is between T c and T 1 , corresponding to the ferroelectric state. The crystal below 136 K was reported to have essentially the same structure as that at 160 K, 10,11 which is between T c and T 1 , corresponding to the ferroelectric state.…”

High-temperature protonic motion and low-temperature lattice deformation in one-dimensional hydrogen-bonded molecular chain in tetramethylpyrazine–chloranilic acid (1:1)

“…In the case of the low-temperature phase of phenazine-chloranilic acid (1:1), Phz-H 2 ca, obtained below 136 K, proton transfer takes place resulting in no cell doubling but a polar chain of hydrogen bonds [13]. In the present case, however, half of the H 2 ca molecules in the chain alternately interact more strongly with the base molecules by cell doubling, keeping the inversion symmetry of the chain.…”

A novel two-dimensional organostannoxane coordination network promoted by phenazine: Synthesis, characterization and X-ray structure of

“…Up to now, several self-assembly architectures based on phenazine molecules as well as phenazinium cations have been already indexed in the literature, underlining the predisposition of such Nheterocyclic molecule to generate p-p stacking and hydrogen bonding interactions [63][64][65][66][67]. The reported X-ray crystallographic structures of the phenazinium trifluoromethanesulfonate salt [C 12 H 9 N 2 ] + [CF 3 SO 3 ] À , 4 and 5, are unprecedented and constitute new examples of 3D self-assembly phenazine-and phenaziniumbased edifices.…”