Cyclohexane complex

Another possibility might be a complex involving more than two alkene molecules e.g., analogous to the cyclobutane complex, a cyclohexane complex can be imagined. In the literature, evidence concerning these possibilities has not been provided so far. 

An alternative suggestion is based on the helicity of pseudoequatorial P-phenyl rings and explains the reversal of configuration between reactions catalyzed by (R, R)- trans -bis-1,2 (N-dipheny lphos phin-amino)-cyclohexane complexes and (R,R)- rans-bis-l,2(N-methyl-2V-diphenylphosphinamino)cyclohexane complexes (13, 14, 15). 

Economics Basis 200,000-tpy cyclohexane complex, ISBL 2005 Gulf Coast location with PSA hydrogen is USS8 million. Catalyst cost is USS 1.2/metric ton of product. 

Several vinylidene complexes containing terminal and bridging vinyl-idene ligands are known, but the title complex and simple derivatives are the only ones whose photochemistry has been studied. Caulton and co-workers (186) observed that irradiation of 153 in the presence of cyclohexene gave disruption of the dimer and formation of the mononuclear vinylidene and cyclohexane complexes 154 and 155 [Eq. (147)], along... 

Two recent studies cast more light on this problem and they are particularly interesting because they relate directly to the context of cationic polymerisation. In the first Bogomolova et al. examined the electronic spectra of mixtures of stannic chloride and styrene or a-methylstyrene in ethyl chloride and cyclohexane. Complexation with the first moncaner gave a band at 295 nm with an extinctimi coefficient of about 1,000 cm in ethyl chloride and about 2,000 in cyclohexane. The in-... 

The kinetics of formation in liquid Kr are inconsistent with a dissociative mechanism but are rationalized by an equilibrium between Kr and cyclohexane complexes prior to OA. vco for Cp Rh(CO)(CyH) is unobservable, probably because of overlap with that of Cp Rh(CO)(Kr).135 Use of cyclohexane- 2 to examine isotopic substitution effects shows an inverse (Kh/Kd = ca 0.1) for the interconversion of Kr and alkane adducts, i.e C6D12 binds more strongly to M than C6H12.116 Although initially contrary to expectations based on simple zero-point energy arguments, this is explainable by the increase in the number of vibrational modes for bound alkane versus free alkane (see Section 7.5.2). As observed for the formation of H2 complexes, the inverse effect is perfectly consistent with formation of an alkane [Pg.400]

A computer analysis of the biphasic kinetics revealed a turnover number of about 66/min for the hemoprotein-cyclohexane complex, which agreed with the specific activity of cyclohexane hydroxylation based on the amount of high-spin complex formed after addition of cyclohexane ... 

In crystalline (Ph2POS)3Sb, only O atoms are coordinated to metal atoms, but in the cyclohexane complex Nd[(C6H )2POS]3 H20 2, both O and S atoms from some of the ligands are involved in coordination [15,16]. 

More importantly the amines are also responsible for activity in cisplatin-resistant cells (Figure 2.4). This has important clinical implications and the demonstration of the lack of cross resistance in 1,2-diamino-cyclohexane complexes [51] is responsible for much of the interest in developing these particular complexes. This ligand is also of interest from a mechanistic point of view because of the demonstration that different stereoisomers also have different biological properties. 

Fig. 18 Structures of cation-benzene and cation-cyclohexane complexes...

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