Preparation and Stereochemistry of Cobalt(III) Complexes Containing 1,1,11,11-Tetraphenyl-4,8-diaza-1,11-diphosphaundecane or (3S,9S)-3,9-Dimethyl-1,1,11,11-tetraphenyl-4,8-diaza-1,11-diphosphaundecane,(C6H5)2PCH2CHRNHCH2CH2CH2NHCHRCH2P(C6H5)2(R=H or CH3)

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1561 References Cited U.S. PATENT DOCUMENTS 3,792,423 2/1974 Becker et al. ......................... 73/620 3,979,712 9/1976 Ettenhofer et al. . 4,028,934 6/1977 Sollish ................................... 73/620 4,327,576 5/1982 Dickey et al. ................... 73/40.5 A 4,640,121 2/1987 Leuker et al. ................... 73/40.5 A 4,641,526 2/1987 Izumi et al. ........................... 73/5...

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An analog-to-digital converter for on-chip focal-plane image sensor applications. The analog-to-digital converter utilizes a single charge integrating amplifier in a charge balancing architecture to implement successive approximation analog-to-digital conversion. This design requires minimal chip area and has high speed and low power dissipation for operation in the 2-10 bit range. The inventio...

Preparation of Symmetrical Tetraphenyl Porphyrin Metal Complexes and Their Spectroscopic Studies

Porphyrins molecules are gaining importance in the present era. Porphyrins are important part of biological molecules like hemoglobin and chlorophyll .Photo system 1 and photo system 2 is important sunlight trap in chloroplast. Electron transport chain is a series of chemical reaction in which energy is formed in the form of ATP (Adenosine triphosphate).The members of electron transport chains ...

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The present invention is embodied in a charge coupled device (CCD)/charge injection device (CID) architecture capable of performing a Fourier transform by simultaneous matrix vector multiplication (MVM) operations in respective plural CCDICID arrays in parallel in 0(1) steps. For example, in one embodiment, a first CCDICID array stores charge packets representing a first matrix operator based u...