X-ray crystal structure of C.I. Disperse Blue 79

Synthesis, optical characterization and crystal and molecular X-ray structure of a phenylazojulolidine derivative

“…These two weaker inter-molecular contacts are responsible of the cohesion between the previous layers of the molecules. The inter-molecular hydrogen bonds observed in azodye 1 are common to benzene azodyes and the lengths found are in agreement with literature data [22,38].…”

“…In azodye 1 the N(9)eN(l0) bond distance is 1.255(4) Å, in agreement with that of azobenzene (1.247(2) Å) [36], and some of its derivatives [37,38,40,42]. In order to assess the effect of the presence of a strong donating group (such as julolidine with respect to standard linear alkylamino), crystallographic features of several azo-compounds are reported for a comparison in Table 3.…”

X-ray crystal structure of C.I. Disperse Brown 1

“…Accordingly, the technical performance and functionality of the disperse dyes have strong relationship with their particle size, morphology as well as crystal structure arrangement [15]. As part of longterm program for the investigation of structure/function relationships for the dye molecules, our group has reported the crystal structures of some disperse dyes such as monoazo [11], methine [12] and anthraquinone [13] dyes. Recently we were successful to prepare the single crystals of C.I.…”

Single crystal X-ray structure of C.I. Disperse Yellow 3

“…860 (4) 7683 (2) 1039 (2) 22(1) C(4) À121(4) 8571 (3) 1279 (2) 27(1) C (5) 108 (4) 9262 (3) 2169 (2) 26(1) C (6) 1355 (4) 9076 (2) 2849 (2) 23(1) C (7) 2335 (4) 8209 (3) 2617 (2) 24(1) C (8) 2097 (4) 7494 (3) 1719 (2) 25(1) C (9) 1047 (4) 11228 (3) 4878 (2) 24(1) C(10) 5(4) 12091 (3) 5061 (2) 26(1) C (11) 185 (4) 12863 (3) 5925 (2) 26(1) C (12) 1439 (4) 12738 (3) 6630 (2) 29(1) C (13) 2492 (4) 11898 (3) 6470 (2) 31(1) C (14) 2327 (4) the acetonitrile solution of the purified dye after two weeks of storage in a refrigerator. The crystal used exists in the triclinic space group P-1.…”

“…As part of a research study concerning the structure/function relationships of dye molecules, we have reported the crystal structures of several types of disperse dyes such as monoazo [12,13], methine [14] and anthraquinone [15] classes. As a continuation of this research, we describe herein the crystal structure of C.I.…”