The title compound CuC14H22N2O9 was crystallized in the monoclinicspace group P21/n(# 14), with a= 9. 032(1), b= 13. 044(6), c= 14. 779(7) A, β=101. 50(3)°, V= 1706. 9(1) A 3, Dc= 1.54 g/cm3, Z=4, Mr= 425. 54, ...The title compound CuC14H22N2O9 was crystallized in the monoclinicspace group P21/n(# 14), with a= 9. 032(1), b= 13. 044(6), c= 14. 779(7) A, β=101. 50(3)°, V= 1706. 9(1) A 3, Dc= 1.54 g/cm3, Z=4, Mr= 425. 54, λ(Mo-Ka) =0. 71069A, μ= 13. 3 cm-1, F(000) = 780, the final R= 0. 058 and Rw= 0. 083 for2322 observable reflections with I> 3δ(I). The Cu atom is coordinated by two Natoms and three O atoms from cdta (cdta = trans-cyclohexane-1, 2-diamine-N, N,N’,N’-tetra-acetate) which acts as pentadentate ligand.展开更多
A switched capacitor biquad filter using current differencing transconductance amplifier (CDTA) is presented in this paper. The proposed circuit employs only one CDTA, two virtually grounded capacitors and one switche...A switched capacitor biquad filter using current differencing transconductance amplifier (CDTA) is presented in this paper. The proposed circuit employs only one CDTA, two virtually grounded capacitors and one switched capacitor. It is a resistorless circuit, so it is beneficial to IC implementation in terms of space consideration. The proposed circuit is a second order single input multiple output (SIMO) current-mode filter. This filter can simultaneously realize all basic filter functions high pass, low pass and band pass responses without any component-matching conditions. All the active and passive sensitivities are low. The natural angular frequency (ω0) and quality factor (Q) of proposed filter can be electronically controlled. Owing to current mode operation it consumes less power. PSPICE simulation results are used to verify the theoretical analysis.展开更多
文摘The title compound CuC14H22N2O9 was crystallized in the monoclinicspace group P21/n(# 14), with a= 9. 032(1), b= 13. 044(6), c= 14. 779(7) A, β=101. 50(3)°, V= 1706. 9(1) A 3, Dc= 1.54 g/cm3, Z=4, Mr= 425. 54, λ(Mo-Ka) =0. 71069A, μ= 13. 3 cm-1, F(000) = 780, the final R= 0. 058 and Rw= 0. 083 for2322 observable reflections with I> 3δ(I). The Cu atom is coordinated by two Natoms and three O atoms from cdta (cdta = trans-cyclohexane-1, 2-diamine-N, N,N’,N’-tetra-acetate) which acts as pentadentate ligand.
文摘A switched capacitor biquad filter using current differencing transconductance amplifier (CDTA) is presented in this paper. The proposed circuit employs only one CDTA, two virtually grounded capacitors and one switched capacitor. It is a resistorless circuit, so it is beneficial to IC implementation in terms of space consideration. The proposed circuit is a second order single input multiple output (SIMO) current-mode filter. This filter can simultaneously realize all basic filter functions high pass, low pass and band pass responses without any component-matching conditions. All the active and passive sensitivities are low. The natural angular frequency (ω0) and quality factor (Q) of proposed filter can be electronically controlled. Owing to current mode operation it consumes less power. PSPICE simulation results are used to verify the theoretical analysis.
