نتایج جستجو برای: cupric ions

تعداد نتایج: 138836  

2012
Souheila Ouilia Chahrazed Beghidja Adel Beghidja François Michaud

In the title complex, [Cu(C(9)H(7)N(2)O(2)S)(2)], the Cu(II) ion, located on an inversion center, adopts an N(2)O(2) square-planar coord-ination. The 2-(5-methyl-sulfanyl-1,3,4-oxadiazol-2-yl)phenolate ligand is chelated to the central Cu(II) ion in an N,O-bidentate manner.

Journal: :Chemical communications 2013
Wei Wang Xiuling Wang Qingbiao Yang Xiaoliang Fei Mingda Sun Yan Song

A novel surface modification strategy for an electrospun nanofibrous film was reported, allowing detection and removal of copper ions in the aqueous solution. This reusable dual fluorescent-colorimetric nanofibrous film can be utilized conveniently to achieve real-time naked-eye sensing in aqueous medium just like using a test paper.

2009
Xin-Yan Zhang

In the title carboxyl-ate-bridged binuclear copper complex, [Cu(2)(C(4)H(5)O(2))(4)(C(5)H(6)N(2))(2)], each Cu(II) ion has a distorted square-based pyramidal environment formed by one N and four O atoms. The asymmetric unit contains two halves of two centrosymmetric mol-ecules, with Cu⋯Cu separations of 2.6498 (8) and 2.6528 (8) Å.

Journal: :Dalton transactions 2011
Zeng-chen Liu Zheng-yin Yang Tian-rong Li Bao-dui Wang Yong Li Dong-dong Qin Ming-fang Wang Mi-hui Yan

In the article, a novel fluorescent probe for the copper cation based on fluorescence quenching mechanism was designed. It exhibited high selectivity for Cu(II) over other common metal ions in aqueous media. Furthermore the coordination between Cu(II) and the organic molecule sensor fabricated an interesting 1D chain coordination polymer framework.

Journal: :Dalton transactions 2014
Jin Young Noh Gyeong Jin Park Yu Jeong Na Hyun Yong Jo Seul Ah Lee Cheal Kim

A new, highly selective and sensitive colorimetric chemosensor 1 for detection of Cu(2+) ions in aqueous solution was developed. Receptor 1 detected Cu(2+) ions by changing its color from colorless to yellow. Moreover, the Cu(2+)-sensitive compound was used as a colorimetric pH detector based on a color change due to 1-Cu(2+) complex formation identifiable by the naked eye.

2010
Rong-Hua Gao Li-Li Yang

In the title complex, [Cu(NO(3))(2)(C(10)H(8)N(2)S)(4)], the Cu(II) atom (site symmetry ) is coordinated by two monodentate nitrate ions and two monodentate di-4-pyridylsulfane ligands, resulting in a slightly distorted trans-arranged CuO(2)N(4) octa-hedral geometry. Intra-molecular C-H⋯O hydrogen bonds are present. In the crystal, adjacent mol-ecules are linked via C-H⋯N hydrogen bonds into ch...

Journal: :Chemical communications 2012
Melek Pamuk Algi Zahide Öztaş Fatih Algi

A simple, selective and sensitive Cu(II) probe is highlighted. It is noteworthy that this novel probe induces triple channel (colorimetric, fluorogenic and voltammetric) response to Cu(II) ions, which makes it viable for practical applications.

2010
Kenta Imoto Souhei Kaneko Yoshihide Tsunobuchi Koji Nakabayashi Shin-ichi Ohkoshi

In the polymeric title compound, [Cu(3)W(2)(CN)(16)(C(7)H(6)N(2))(6)(H(2)O)](n), the coordination geometry of the W(V) atom is eight-coordinate dodeca-hedral, where four CN groups of [W(CN)(8)] are bridged to Cu(II) ions, and the other four CN groups are not bridged. The coordination geometries of the Cu(II) ions are five-coordinate pseudo-square-based pyramidal. There are two distinct Cu sites...

Journal: :Nature materials 2008
T Kimura Y Sekio H Nakamura T Siegrist A P Ramirez

Materials that combine coupled electric and magnetic dipole order are termed 'magnetoelectric multiferroics'. In the past few years, a new class of such materials, 'induced-multiferroics', has been discovered, wherein non-collinear spiral magnetic order breaks inversion symmetry, thus inducing ferroelectricity. Spiral magnetic order often arises from the existence of competing magnetic interact...

Journal: :Chemical communications 2013
Ji Young Jung Minkyung Kang Jihyun Chun Jungha Lee Jaemee Kim Jinheung Kim Youngmee Kim Sung-Jin Kim Chongmok Lee Juyoung Yoon

A novel thiazolothiazole-based Cu(2+) colorimetric and fluorescent sensor is reported. A highly selective colorimetric change from yellow to dark green was observed among various metal ions after adding Cu(2+). Unique radical formation can engender these highly selective colorimetric and fluorescent changes.

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