Transition Metal Complexes of a-Naphthylamine Dithiocarbamate

a-Naphthylamine dithiocarbamate and its complexes with Co(II), Ni(U), Cu(II), Ru(III) , Rh(III), Pd(II), Pt(IV), Zn(II), Cd(II) and Hg(II) have been prepared and characterized by chemical analysis, IR - and reflectance spectral studies and magnetic susceptibili ty measurements. In all these complexes the dithiocarbamato moiety acts as a chelate. The Ni(II), Cu(II) and Pd(Il) complexes have been found to be square planar while those of Ru(III), Rh(III) and Pt(IV) were proposed to be octahedral in nature. The Co(II) ion seems to have a tetrahedral geometry, unlike the other known square planar dithiocarbamato complexes of Co(II). No definite structure, however, could be proposed for Zn(II), Cd(II) and Hg(II) on the basis of limited studies

Quantum Fluctuations in the Chirped Pendulum

An anharmonic oscillator when driven with a fast, frequency chirped voltage pulse can oscillate with either small or large amplitude depending on whether the drive voltage is below or above a critical value-a well studied classical phenomenon known as autoresonance. Using a 6 GHz superconducting resonator embedded with a Josephson tunnel junction, we have studied for the first time the role of noise in this non-equilibrium system and find that the width of the threshold for capture into autoresonance decreases as the square root of T, and saturates below 150 mK due to zero point motion of the oscillator. This unique scaling results from the non-equilibrium excitation where fluctuations, both quantum and classical, only determine the initial oscillator motion and not its subsequent dynamics. We have investigated this paradigm in an electrical circuit but our findings are applicable to all out of equilibrium nonlinear oscillators.Comment: 5 pages, 4 figure

Propeller study. Part 3: Experimental determination of thrust and torque on the YO-3A aircraft

Instrumentation and procedures for obtaining in-flight measurements of the torque and thrust of a propeller mounted on a YO-3A aircraft are described. Problems encountered in the study are discussed and methods for eliminating these difficulties are suggested

Measurement-induced qubit state mixing in circuit QED from up-converted dephasing noise

We observe measurement-induced qubit state mixing in a transmon qubit dispersively coupled to a planar readout cavity. Our results indicate that dephasing noise at the qubit-readout detuning frequency is up-converted by readout photons to cause spurious qubit state transitions, thus limiting the nondemolition character of the readout. Furthermore, we use the qubit transition rate as a tool to extract an equivalent flux noise spectral density at f ~ 1 GHz and find agreement with values extrapolated from a $1/f^\alpha$ fit to the measured flux noise spectral density below 1 Hz.Comment: 5 pages, 4 figures. Final journal versio

Breeding phenology and daily activity of the Hawaiian Short-eared Owl (Asio flammeus sandwichensis) on O'ahu

A technical report prepared for the State of Hawaiʻi Department of Land & Natural Resources on breeding phenology and daily activity of the Hawaiian Short-eared Owl (Asio flammeus sandwichensis) on O'ah

Complexes of Some Group(IV) Metal Halides with 5-Aminoindazole

The synthesis and characterisation of Sn(IV) halides, Ge(IV), Ti(IV) and Zr(IV) chloride complexes of the type MX4 : Li_ 2 with 5-aminoindazole has been made. The possible structure of these complexes has been proposed on the basis of elemental analysis and infrared spectroscopy. The IR spectra suggest unidentate behaviour of the ligand involving pyrrole nitrogen in all the cases except the tin(IV) bromide complex, where the ligand exhibits its bidentate nature, involving the pyridyl nitrogen. An octahedral geometry has been proposed for all the complexes. In the case of MX4 :\u27L type complexes, except for SnBr4 : L, an octahedral halogen bridged structure has been proposed

Complexes of Some Group(IV) Metal Halides with 5-Aminoindazole

The synthesis and characterisation of Sn(IV) halides, Ge(IV), Ti(IV) and Zr(IV) chloride complexes of the type MX4 : Li_ 2 with 5-aminoindazole has been made. The possible structure of these complexes has been proposed on the basis of elemental analysis and infrared spectroscopy. The IR spectra suggest unidentate behaviour of the ligand involving pyrrole nitrogen in all the cases except the tin(IV) bromide complex, where the ligand exhibits its bidentate nature, involving the pyridyl nitrogen. An octahedral geometry has been proposed for all the complexes. In the case of MX4 :\u27L type complexes, except for SnBr4 : L, an octahedral halogen bridged structure has been proposed