Conformation of Octachloronaphthalene

Hexachloroquinoxaline

“…These deviations are very small, which is surprising because distances of the adjacent C1 atoms are all close to 3.12 A, which is considerably less than twice the van der Waals radius (1.8 A, Pauling, 1960). Apparently, this does not introduce any appreciable deviation from the plane, in agreement with a phenomenon found in the related octachloronaphthalene (Gafner & Herbstein, 1963). In the latter compound, adjacent a-and fl-C1 atoms are displaced in the same direction, although their mutual distances are only about 3.0 A, which is even less than in the present molecule.…”

Perchloro-p-xylene

“…The molecule of perchloro-p-xylene (PPX) has severe steric strain due to repulsion among the bulky C1 substituents, with short distances (mean value = 3.013 A) between the geminal Cl atoms C1(12) and Cl(13) land Cl(16) and C1 (17)] and the ring C1 atoms Cl(10) and C1(14) [and C1(15) and Cl (9)] respectively. Almost identical distances between C1 atoms at analogous locations have been found in perchlorobenzylidene-2,5-cyclohexadiene (Gall, Solans, Miravitlles & Plana, 1978), octachloronaphthalene (Gafner & Herbstein, 1963), perchloro-l,2,3-triphenylnaphthalene (Gall, Solans, MiravitUes, Font-Altaba & Armet, 1978), decachlorophenanthrene (Herbstein, Kapon & Merksamer, 1976), and decachloropyrene (Hazell & Jagner, 1976). These strains cause the C (2) 17832 (34) 68073 (32) 92748 (64) C(3) 14209 (37) 74885 (34) 92923 (68) C(4) 6613 (35) 76123 (31) 86580 (65) C(5) 1858 (34) 69903 (30) 84569 (60) C (6) 5466 (33) 63104 (28) 84255 (57) C (7) 18204 (33) 55262 (30) 82770 (6 I) C (8) 3387 (45) 83691 (32) 83524 (75) C1 (9) 26544 (10) 66868 (10) 102081 (24) El (10) 19031 (13) 81516 …”

Deposition of Cl‐doped CdTe polycrystalline films by close‐spaced sublimation

“…These diffraction peaks were probably due to the formation of chlorides of Cd, Te and C, such as CdCl 2 , TeCl 4 , Te 3 Cl 2 and C 10 Cl 8 [18][19][20][21][22]. For example, the peaks located at approximately 15°, 25° and 37° were probably due to CdCl 2 (003), C 10 Cl 8 (021), and Te 3 Cl 2 (131) [18,20,21]. The intensities of these diffraction peaks decreased with increasing the deposition time.…”