Y supports

Table 3 Allylic alcohol epoxidation with TBHP/dioxomolybdenum Mo02(acac)(L ) catalysts, where the catalysts were homogeneous or zeolite-Y-supported... 

Table 10 Silane oxidation with aqueous H202/zeolite-Y-supported MTO...

Eq. (6) with oji = 2x. A rotational isomeric state model for polyphosphate chains (2 76,187) was used to compute values of < rj >o required by Eq. (6). Comparison of the experimental values with the theoretical values, as well as with the values for the corresponding cyclic siloxanes (R(CH3)SiO)x [see Section III.(A)5] stronj y supports the contention that polyphos diate chains in sodium phosphate melts adopt random-coil conformations. Further evidence for the structure of sodium phosphate melts would come from precise data for macrocyclic concentrations in quenched sodium phosphate ring-chain equilibrates, if these became available. 

Zeolithe-Y-supported W2C shows metallic hydrogenation properties and can also be used as catalyst in the thiophene hydrogenation. 

The zeolite Y-supported, heterogeneous catalyst (54-CuHY) was also used by Hutchings et al. [61] for the enantioselective carbonyl- and imino-ene reactions. In a carbonyl-ene reaction of methylene cyclopentane with ethyl glyoxylate, the heterogeneous catalyst 54-CuHY exhibited superior enantioselectivity (93% ee) compared to the homogeneous catalyst 54-Cu(OTf)2 (57% ee) (Scheme 2.30), due to the confinement effect of the zeolite pores. 

The first strand of Ham s argument [11] is that y(< )) supports continuous bands of Floquet states, with wave functions of the form... 

Tsochantaridis, I., Hofmann, T., Joachims, T., Altun, Y. Support vector machine learning for interdependent and structured output spaces, in International Conference on Machine Learning 2004, pp. 823-30. 

The above analysis for CH3—CO-X molecules where X bears lone pair AO s is stron y supported by the experimental data. Specifically, the preferred conformation for the case where X = halogen is the eclipsed conformation... 

Catalytic wet peroxide oxidation of organic compound in wastewater streams Fe- and Cu-containing zeolites (ZSM-5 and Y supports) Successful replacement of homogeneous Fenton systems [72]... 

FIGURE 4.4 The reaction steps discussed for Cr, Mn, Fe, and Co embedded into a MgO (OH)y support. Step 1 comprises the oxidation of two TM-OH units to from two TM=0 moieties. The second step considered here is the intramolecular 0-0 bond formation between these two TM=0 groups. Adapted from Ref. [49]. 

Complementary NMR measurements, such as rises of carbon polarisation in a spin-lock experiment and determination of spin-lattice relaxation times in the rotating frame, TipC C)y support these conclusions about the correlation times of the side-ring CH and CH2 motions in the various poly(cycloalkyl methacrylates). 

In this paper, we report the recent results on the acidification of diatomite (Phu Yen-Vietnam) by atomic implantation aluminum and the preparation of nano-zeolite Y supported diatomite by in situ ciystallization method. 

Fig. 2. FE-SEM photographs of diatomite (middle), nano-zeohte Y supported diatomite (right), and corresponding surface zoom (left).

The morphology and porosity of nano-zeolite Y supported diatomite was examined by FE-SEM (Fig. 2) The pm-Hsized diatomite support consists of cylindrically shaped tubes. The tubes have large-sized free internal pores. They are additionally accessible from the surface of the tubes by large mesopores (Fig. 2, middle). It was observed that nano-zeohte Y, providing micropores, was formed on the surface of diatomite. Additionally, voids of 20-50 mu size were formed. (Fig. 2, right). The nano-zeolite Y crystal size varied from 20 to 35 mu (Fig. 2, left). This result was also confirmed by N2 adsorption/ desorption measurement. 

Table 1. Reaction conditions, conversion and products yields in cracking of Bach Ho residue over nano-zeolite Y supported diatomite and acidified diatomite.

Catalyst Name Nano Y support Diatomite Acidified diatomite... 

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