Tetrahedral molecular structure distorted

The molecular structure of the f-butyl derivative [BpBut]ZnBul has been determined by an x-ray diffraction study, which confirms a distorted trigonal planar coordination environment for zinc, as shown by the two views in Figs. 26 and 27 (80). In comparison to tetrahedral coordination, three-coordinate zinc alkyl complexes are rare (84). 

Munakata et al. determined the molecular structures of the complexes (652) (quasi-tetrahedral) and (653) (distorted tetrahedron) and determined the nature of the bonding.518 Warren and... 

Figure 120 shows the molecular structure of complex [CunL2]2 +, which has a planar CuN2S2 coordination with a slight tetrahedral distortion. 

Each Cu1 center (gray ball) is bound to an imine and to a pyridine nitrogen atom from each strand and shows a rather distorted tetrahedral coordination geometry. On the other hand, Fig. 2.15, which displays the molecular structure of the [Cun(16)](CF3S03)2 salt, shows that the Cu11 ion prefers to form a mononuclear complex species. 

The crystal and molecular structure of ZnL2 (HL = 5-butylthio-8-thioloquinoline (117) has been reported the metal is more conventionally coordinated here in a distorted tetrahedral N2S2 environment.826... 

Similar to the situation for quadrupole-induced relaxation, the quadrupole splitting in liquid crystals is zero if the molecular symmetry is tetrahedral or higher. Electric field gradients are zero for such symmetries so there can be no quadrupolar interaction. However, one expects to see small splittings from tetrahedral or octahedral derivatives because of structural distortions. These predominately arise from specific interactions with extraneous materials such as lipophilic headgroups in surfactant systems, as seen, for instance, in both cationic and anionic octahedral cobalt(III) species [23], Much larger splittings will be expected from other structure... 

The molecular structure of Cp3U(THF) features a distorted tetrahedral coordination geometry (8) with U-C = 2.76-2.82 A andU-0 = 2.55(1) A, while (Me3SiCsH4)3U (Cp I sU) is trigonal planar. The trigonal geometry of Cp I sU is only moderately perturbed by interaction with ethyl isocyanide to form Cp 3U(CNEt). ... 

Dichlorine oxide, CI2O, is best prepared on a laboratory scale by reacting chlorine with mercury oxide (equation 94). On an industrial scale, it can be prepared by reacting chlorine with moist carbonate (equation 95). This oxide is readily soluble in water to form hypochlorous acid (equation 96). Its salts, the hypochlorites, are quite stable and are used in the textile industries and to bleach wood pulp. The low-temperature crystal structme of CI2O reveals an essentially molecular structure [d(O-Cl) = 1.7092(4) A] with weak secondary interactions [d(0- Cl) = 2.7986(4) A] affording a distorted tetrahedral coordination around the O atom. ... 

A sulfenamide complex [W(NBut)2( 72-PhSNBut)2] was produced by the interaction of Li2W (NBu )4 with PhSCl. The molecular structure with distorted bicapped tetrahedral geometry is shown in Figure 14.78... 

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