Details

Autor(en) / Beteiligte

• Xu, Hui
• Zhou, Bo-Yu
• Yu, Kai
• Su, Zhan-Hua
• Zhou, Bai-Bin
• Su, Zhong-Min

Titel

Copper cyanide polymers with controllable dimensions modulated by rigid and flexible bis-(imidazole) ligands: synthesis, crystal structure and fluorescence properties

Ist Teil von

• CrystEngComm, 2019, Vol.21 (8), p.1242-1249

Ort / Verlag

Cambridge: Royal Society of Chemistry

Erscheinungsjahr

2019

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A series of cyanide-bridged coordination polymers (CPs), [CuI2(CN) 2 (bbi) 3 ] n ( 1 , 1D), [{Cu II (CN) 2 }{CuI2(CN) 2 }(bimb) 3 ] ( 2 , 2D), (H 2 dip)[CuI4(CN) 6 ] ( 3 , 3D), [{CuI2(CN) 2 }(bix)] n ( 4 , 3D), and [CuI2(CN) 2 (bib)] ( 5 , 2D), (bbi = 4,4′-bis(imidazoly)biphenyl, bimb = 1,4-bis(imidazole-l-yl)butane, dip = 1,5-di(1 H -imidazol-l-yl)pentane, bix = 1,4-bis(imidazol-1-ylmethyl)benzene, bib = 1,4-bis(1-imidazolyl)benzene), with controllable dimensions have been prepared under hydrothermal conditions by using different types of rigid and flexible bis-(imidazole) ligands. The characterization of all the polymers has been performed by elemental analyses, infrared spectroscopy (IR), thermogravimetric analyses (TGA), powder X-ray diffraction (PXRD), and single crystal X-ray diffraction. 1 displays two noncovalently-bonded parallel one-dimensional (1D) chains, which are woven to produce a three-dimensional (3D) supramolecular architecture by intermolecular forces. For 2 , bimb ligands stabilize the copper( i ) and copper( ii ) mixed-valence states to from a (2,6)-connected two-dimensional (2D) network, which then results in a 3D supramolecular network via intermolecular forces. 3 generates an interesting 3D open framework and the protonated dip ligands as templates and charge compensating agents are encapsulated in the tunnel. In 4 , bix ligands act as linkers bridging adjacent 2D networks to generate a 3D coordination framework. 5 is a 2D network structure consisting of [CuCN] n zigzag chains and bib ligands. Moreover, 1–5 show thermal stabilities and luminescence properties in the solid state at room temperature.