Polycatenated copper(I) molecular ladders: a new structural motif in inorganic coordination polymers

Abstract

The complex {[Cu 2 (MeCN) 2 L 3 ](PF 6 ) 2 } H [L = 1,4-bis(4pyridyl)butadiyne] is prepared and characterised by X-ray diffraction studies which show an undulating polycatenated molecular ladder structure involving fully interwoven two-dimensional sheets.

Constructing Terbium Co-ordination Polymers of 4,4′-Bipyridine-N,N′-dioxide by Means of Diffusion Solvent Mixtures

“…The ladder motif is known for d-block metals complexes such as [Co 2 (NO 3 ) 4 (1,2-bis(4-pyridyl)ethyne) 3 ] I , [23] [Cd 2 (NO 3 ) 4 (1,2-bis(4-pyridyl)ethane) 3 ] I , [24] [Co 2 (NO 3 ) 4 (1,2-bis(4-pyridyl)ethane) 3 ] I , [11] [Co 2 (NO 3 ) 4 (4,4'-bipyridine) 3 ] I , [25] [Cd 2 (NO 3 ) 4 (1,4-bis(4-methylenepyridyl)benzene) 3 ] I , [26] [M 2 (NO 3 ) 4 (3,6-bis(pyridin-3-yl)-1,2,4,5-tetrazine) 3 ] I (M Cd, Zn) [12] and {[Cu 2 (MeCN) 2 (1,4-bis(4-pyridyl)butadiyne) 3 ]PF 6 } I . [27] Most of these polymers are based upon pseudo-octahedral or pentagonal-bipyramidal metal centres that generate what may be termed a flat ladder with all linking ligands coplanar. In the last case, [27] however, the tetrahedral Cu I centres allow the ladder to undulate.…”

“…[27] Most of these polymers are based upon pseudo-octahedral or pentagonal-bipyramidal metal centres that generate what may be termed a flat ladder with all linking ligands coplanar. In the last case, [27] however, the tetrahedral Cu I centres allow the ladder to undulate. A few examples of ladder structures generated from f-block or a combination of d-block and f-block metals are also known such as those found in [Ln(H 2 O) x (C 2 O 4 ){O(CH 2 CO 2 ) 2 } 2 ] I [28] and {Ln 2 [Cu(opba)] 3 } I [29] (Ln lanthanide ion, opba orthophenylenebis(oxamato)), all of which are generated by using oxalate or carboxylate chelating ligands.…”

A green methods to synthesise 4,4′- 2 carbazole diphenyl (CBP)

“…Through repeated experiments found that there are many factors that can cause experimental yield high and low [6] , external factors are: the reaction time, reaction temperature and reactant ratio, catalyst dosage and homemade glass instruments such as hollow glass tube length.Content through the experiment to explore that 4, 4 '-2 carbazole group biphenyl (CBP) of green synthesis, the effects of the kinds of catalyst on reaction yield, come to a conclusion CuO, Cu powder (nitric acid) as catalyst, the direct product of high purity, high yield, and catalyst recycling will not result in heavy metal pollution of environment [7] .Through experiment contents two inquiry that CuO, Cu powder (nitric acid treatment) of green synthesis, the effect of catalyst on the reaction yield, come to a conclusion when copper catalyst add 0.3 g, the corresponding material ratio 2.1:1:3:0. 0015 the highest yield.…”

1D, 2D and 3D Coordination Polymers of Aromatic Carboxylate TbIII: Structure, Thermolysis Kinetics and Fluorescence

“…[1][2][3][4] As is well known, aromatic carboxylate ligands with largely rigid frameworks binding elastically coordinating carboxyl groups have been widely selected to assemble with transition metals, and thus a great deal of coordination polymers with novel architectures with potential applications in fields of absorption, separation, sensors and so on have been obtained. [5][6][7][8][9][10] Comparatively, fewer lanthanide coordination complexes with aromatic carboxylic acid ligands have been investigated, and most of them are discrete molecules. [11][12][13] Even now lanthanide coordination polymers with aromatic carboxylic acids have stimulated strong interest in light conversion molecular devices.…”