66433-95-2Relevant articles and documents
The syntheses of nitrogen-oxygen donor macrocycles containing pyridine ring
Zhao,Feng Qin Wang,Lai Jin Tian
, p. 781 - 783 (2001)
Five new nitrogen-oxygen mixed donor macrocycles have been prepared by condensation of 2,6-bis [(2-formylphenyl)oxymethyl]pyridine with different diamino compounds in hot methanol, followed by a one-pot reduction of the intermediate bis-Schiff base. All the macrocycles were identified by elemental analysis, and ir, uv, and nmr spectroscopy.
Ansa-Porphyrines with an Alkyl Chain, a Pyridine or a Second Porphyrine in the Bridge
Ohm, Christian,Breitmaier, Eberhard
, p. 530 - 533 (1994)
Porphyrines 1, 2a and 2b with an alkyl chain, a pyridine or an additional porphyrine in the bridge are prepared in yields between 5 and 24percent by condensation of appropriate chains 5 and 6 containing two terminal benzaldehyde functions with 3,3'-diethy
Microwave assisted multi-component synthesis of novel bis(1,4-dihydropyridines) based arenes or heteroarenes
Sanad, Sherif M. H.,Kassab, Refaie M.,Abdelhamid, Ismail A.,Elwahy, Ahmed H. M.
, p. 910 - 924 (2016/07/06)
A synthesis of novel bis-1,4-DHPs was reported. Two possible synthetic approaches for these compounds were investigated. In the first approach the monopodal 1,4-DHPs were used as building blocks for the construction of the target molecules via a simple al
Cooperative effect of anion and mole ratio on the coordination modes of an NO2S3-donor macrocycle
Lee, Hyeong-Hwan,Park, In-Hyeok,Lee, Shim Sung
, p. 4763 - 4769 (2014/05/20)
Synthesis of an NO2S3-macrocycle (L) incorporating a pyridine subunit and its anion and/or mole ratio-dependent coordination modes in the formations of mercury(II) complexes is reported. When the mercury(II) salts with different anio
Synthesis, structural characterization and metal inclusion properties of 18-, 20- and 22-membered oxaazacyclophanes and oxaazacalix[4]arene analogues: Macrocyclic amine and schiff base receptors with variable NxO y donor sets
Moreno-Corral, Ramon,Hoepfl, Herbert,MacHi-Lara, Lorena,Lara, Karen O.
experimental part, p. 2148 - 2162 (2011/05/09)
A series of oxaazacyclophanes and oxaazacalix[4]arene analogues with 18-, 20- and 22-membered rings have been synthesized from diamine and dialdehyde building blocks and structurally characterized by spectroscopic methods. One diamine precursor and four macrocycles have additionally been analysed by single-crystal X-ray diffraction. Two of the oxaazacalix[4]arene analogues were employed for metal ion complexation studies based on UV/Vis absorption spectroscopy, showing both compounds to be able to form complexes with Cu 2+ and Zn2+. Copyright
Sulfur-containing mixed-donor tribenzo-macrocycles and their endo-and exocyclic supramolecular silver(I) and copper(I) complexes
Kang, Eun-Ju,Lee, So Young,Lee, Hayan,Lee, Shim Sung
scheme or table, p. 7510 - 7520 (2010/09/17)
New sulfur-containing mixed-donor macrocycles L1-L4 with different donor sets and/or ring sizes (L1, 20-membered O 3S2; L2, 20-membered NO2S 2; L3, 20-membe
Synthesis, crystal structures and luminescent properties of an isotypic series of rare-earths complexes with a dialdehyde ligand
De Luna, Sara Luisa Rodríguez,Garza, Luis ángel,Bernès, Sylvain,Elizondo, Perla,Nájera, Blanca,Pérez, Nancy
experimental part, p. 2048 - 2052 (2010/08/21)
A series of mononuclear complexes based on lanthanide ions has been synthesized and X-ray characterized. The compounds [LnIIIL 2(NO3)3(H2O)2] (Ln = La, Ce, Pr, Nd, Sm, Gd and Tm; L = 2, 6-bis(2-formylphenoxymethyl)pyridine) are found to be isomorphous and isostructural. Ligand L systematically coordinates through one carbonyl functionality, and the resulting complexes are placed on a twofold axis in crystals belonging to C2/c space-group. Emission spectra for Ln = La, Pr, Nd revealed a correlation between the Ln-O coordination bond length and the photoluminescent properties of the complexes, in line with a F?rster-Dexter mechanism for intramolecular energy transfer. Ligand L is therefore a suitable sensitizer for lanthanide ions.
Synthesis of new benzo-substituted macrocyclic ligands containing pyridine or triazole as subcyclic units
Elwahy, Ahmed H. M.,Abbas, Ashraf A.
, p. 885 - 895 (2007/10/03)
The macrocyclic diamides 11-21, 42 and 43 were prepared by nucleophilic reaction of the bis phenols 22-29 with the appropriate dihalo compounds 2, 3, 40 and 41, respectively. The macrocyclic dithiodiamides 30-33 were obtained in good yields upon treatment
INTERACTION OF 2,6-BIS(ARYLOXYMETHYL)PYRIDINES WITH AEROSIL SURFACE
Kamalov, G. L.,Zakolodyazhnaya, O. V.,Manolova, A. V.,Gavsevich, Yu. V.
, p. 561 - 566 (2007/10/02)
Monolayer adsorption of 2,6-bis(aryloxymethyl)pyridines from benzene solutions by Aerosil is characterized by weak intermolecular interaction of the sorbates, so that it is possible to apply acid-base concepts in interpreting the interaction of the compou
Metal-ion Selectivity by Macrocyclic Ligands. Part 1. The Interaction of NiII and CuII with Pyridinyl-derived N3O2 Macrocycles; The X-Ray Structures of a Free Macrocycle, its Endomacrocyclic Complexes of NiII and CuII and an Exomacrocyclic Nickel(II) Complex
Bailey, Neil A.,Fenton, David E.,Kitchen, Simon J.,Lilley, Terence H.,Williams, Mark G.,et al.
, p. 627 - 637 (2007/10/02)
The interaction of CuII and NiII with two macrocycles L1 and L2, each containing an N3O2 donor set, has been investigated.Spectrophotometric studies in dimethyl sulphoxide reveal the formation of complexes with 1:1 and 1:2 metal:ligand ratios and conductometric studies in the same solvent indicated that all of the complexes were 1:2 electrolytes.Conductometric titration of the 1:1 copper(II) complexes with chloride in each case indicated the formation of a 1:1 electrolyte, presumably through co-ordination of a chloride ion to the central copper of each complex.Similar titration of the nickel(II) complexes gave evidence for the formation of dinuclear species; each of these was postulated to contain a bridging chloride anion.The stability constants of the complexes together with their enthalpies of co-ordination have been determined in 95percent methanol.Extraction and related transport experiments were carried out and under the conditions employed CuII was favoured over NiII.The X-ray crystal structures of the free macrocycle L1, the 1:1 complexes 1(H2O)>2 and 1(I)>I*MeOH, and the 1:2 complex 12(NO3)>NO3*2MeOH have been determined.The metal in 1(H2O)>2 is six-co-ordinate and lies within the folded macrocyclic cavity.The donor set comprises the five macrocyclic donor atoms and a water molecule.Overall, the co-ordination sphere corresponds to a restricted tetragonal rhombic arrangement.The complex 1(I)>*MeOH also has all donors of the macrocycle co-ordinated with an iodide anion occupying the sixth site to yield a distorted-octahedral geometry.The structure of 12(NO3)>NO3*2MeOH shows that the nickel is again six-co-ordinated, to the aliphatic nitrogen atoms from two macrocycles (each showing exo co-ordination) and a bidentate nitrate anion.