C Type

Manzamine C (40) is characterized by a 2-ethyl-N-azacycloundec-6-ene connected to C-1 of a p-carboline. To date, only two analogs of this type of manzamine have been reported. Manzamine C was obtained from the same species Haliclona sp. that yields manzamine A [37a[. Keramamine C (41) was isolated from an Okinawan marine sponge Amphimedon sp. [18[. 

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The out-of-plane vibrations of thiazole correspond to C-type vibration-rotation bands and the in-plane vibrations to A, B, or (A + B) hybrid-type bands (Fig, 1-9). The Raman diffusion lines of weak intensity were assigned to A"-type oscillations and the more intense and polarized lines to A vibration modes (Fig. I-IO and Table 1-23). 

Out-of-Plane Vibrations, yCH and yCD. In accordance with all the proposed assignments (201-203), the bands at 797 and 716 cm correspond to yCH vibrators, which is confirmed by the C-type structure observed for these frequencies in the vapor-phase spectrum of thiazoie (Fig. 1-9). On the contrary, the assignments proposed for the third yCH mode are contradictory. According to Chouteau et al. (201), this vibration is located at 723 cm whereas Sbrana et al. (202) prefer the band at S49cm and Davidovics et al. (203) the peak at 877 cm This last assignment is the most compatible with the whole set of spectra for the thiazole derivatives (203) and is confirmed by the normal vibration mode calculations (205) (Table 1-25). The order of decreasing yCH frequencies, established by the study of isotopic and substituted thiazole derivatives, is (203) yC(4)H > 70(2)13 > yC(5)H. Both the 2- and 4-positions, which seem equivalent for the vCH modes, are quite different for the yCH out-of-plane vibrations, a fact related to the influence observed for the... 

A" Symmetry Vibrations. The first ring vibration of the A" type has been located at 650 cm as a result of the C-type structure observed for that band (Fig. 1-9) (202,203). 

The frequencies classified in suites IX and X belong to depolarized Raman lines and correspond to vibrations-rotation bands of the C type. They can be assigned to oscillations of A" symmetry. 

Flux Melting point, °C Types of crucible used for fusion Type of substances decomposed... 

Type B thermocouples (Table 11.56) offer distinct advantages of improved stability, increased mechanical strength, and higher possible operating temperatures. They have the unique advantage that the reference junction potential is almost immaterial, as long as it is between 0°C and 40°C. Type B is virtually useless below 50°C because it exhibits a double-value ambiguity from 0°C to 42°C. 

Fixed point °C Type B Type E Type J Type K Type N Type R Type S Type T... 

Ketones and esters are required for C-type inks. Types of esters are ethyl acetate, isopropyl acetate, normal propyl acetate, and butyl acetate. From the ketone class, acetone or methyl ethyl ketone (MEK) can be used. The usual solvent for D-type inks are mixtures of an alcohol, such as ethyl alcohol or isopropyl alcohol, with either aUphatic or aromatic hydrocarbons. Commonly used mixtures are 50/50 blends by volume of alcohol and aUphatic hydrocarbon. 

Grade C, Type II is typical of Hquid oxygen used as a rocket propellant oxidizer. Particulate content is limited because of the critical clearances found in mechanical parts of the rocket engine. In addition to water, acetylene and methane are limited because, on long standing, oxygen evaporation could cause concentration of these combustible contaminants to reach hazardous levels. 

Base-plate waxes are formulated for specific uses or working conditions into types 1,11, and 111. Consequentiy, the flow requirements differ. Type 1 waxes are soft waxes for building contours and veneers, type 11 waxes are medium waxes used for pattern production in the mouth in temperate weather, and type 111 waxes are hard waxes used for production in the mouth in hot weather. At 37°C, type 1 waxes have a 45—85% flow at 45°C, type 11 waxes have a 50—90% flow and type 111 waxes have a 5—50% flow. 

The synthesis of pyrazolines and pyrazoles of the [CCNN + C] type with the creation of two bonds, N(2)-C(3) + C(3)-C(4) (or N(l)-C(5) + C(5)-C(4)), has been studied by several groups. Beam and coworkers have published a series of papers on the synthetic utility of lithiated hydrazones. Thus, the methylhydrazone of acetophenone (598) is converted by butyllithium into the dianion (599), which in turn reacts with methyl benzoate to afford the pyrazole (600) (76SC5). In earlier publications Beam et al. have used aldehydes and acyl chlorides to obtain pyrazolines and pyrazoles by the same method. 

FIG. 14-109 Typical separators using impingement in addition to centrifugal force, a) Hi-eF purifier. (V D, Anderson Co.) (h) Flick separator. (Wutster line separator. (Centrifix Co7j>., Bull. 220.)... 

The maximum magnetic field produced by a C-type device is 2 T. For solenoids, conventional designs produce magnetic-field intensi-... 

FIG. 21-61 Typ es of pallets. Designations are standard designs based on nomenclature of tbe National Wooden Pallet and Container Association, Washington, D.C. Types 2B and 2C are used for bags and corrugated cartons. Type 3 is used for drums and pails. 

A Schejter, I Aviram, T Goldkorn. The contribution of electrostatic factors to the oxidation-reduction potentials of c-type cytochi omes. In C Ho, ed. Electron Transport and Oxygen Utilization. New York Elsevier North-Holland, 1982, pp 95-109. 

You may report transfers of less than 1.000 pounds by checking ranges under A.1. (Do not use both A.1 and A.2) A. Total Transfers (pounds/yearl B. Basis of Estimate (enter codel C.Type of Treatment. Disposal (enter code) ... 

From elongated tori, such as type (C), type (D), and type (E), helical structures are derived. For example, from the type (C) elongated torus of mentioned in 3.2.2, helix C756 (/t = 6, /t2 = 3, L = 1) and... 

The measurement ranges for the base-metal thermocouples are 0 to +750 °C (type J), -200 to +1200 °C (type K), and -200 to +350 °C (type T). The noble-metal thermocouples can be used at higher temperatures up to 1700 °C. The dynamic response of sheathed thermocouples is not very fast however, a probe made from bare, thin wires can have very fast dynamic properties. One of the best features of thermocouples is the simplicity of making new probes by soldering or welding the ends of two wires together. 

The most frequently applied mechanical manometers in ventilation applications are fluid manometers, bur the following types are also used. The Bourdon tube is a small-voiume tube with an elliptic cross-section bent to the shape of a circular arc, the C-type. One end is open to the applied pressure while the other end is closed. The pressure inside the tube causes an elastic defonnation ot the tube and displaces the closed end, which is then converted, by means of a linkage mechanism, into the movement of a pointer. The Bourdon tube may be of a spiral or helical design as well. 

In203 has the C-type M2O3 structure (p. 1238) and InO(OH) (prepared hydrothermal ly from In(OH)3 at 250-400°C and 100-1500 atm) has a deformed rutile structure (p. 961) rather than the layer lattice structure of AIO(OH) and GaO(OH). Crystalline In(OH)3 is best prepared by addition of NH3 to aqueous InCl3 at 100° and ageing the precipitate for a few hours at this temperature it has the simple Re03-type structure distorted somewhat by multiple H bonds. 

C-type, related to the fluorite strueture but with one-quarter of the anions removed in sueh a way as to reduee the metal eoordination number from 8 to 6 (but not oetahedral) favoured by the middle and heavy lanthanides. 

From Pu onwards, sesquioxides become increasingly stable with structures analogous to those of Lu203 (p. 1238) Bk02 is out-of-sequence but this is presumably due to the stability of the f configuration in Bk. For each actinide the C-type M2O3 structure (metal CN = 6) is the most common but A and B types (metal CN = 7) are often also obtainable. 

Reaction of iron with oxygen at room temperature or with oxygen or water at high temperatures —interfacial A/C type. 

Reaction of iron with oxygenated water or with reducing acids— inseparable A/C type. 

Reaction of iron containing a discontinuous magnetite scale with oxygenated water, crevice corrosion, water-line attack, long-line corrosion of buried iron pipes, etc. — separable A/C type. 

Fig. 7.31 Metal wastage of several steels due to oxidation in air (saturated with water at room temperature) for 10 (XX) h at various temperatures, (o) Type 302S3I, (b) type32IS3l, (c) type 3I6S3I and (d) type 3I0S31. T lomi = 5suiract + / ptntiraiion (after Edwards and Nicholson )...

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