52118-10-2Relevant articles and documents
Synthesis and spectral studies of macrocyclic Pb(II), Zn(II), Cd(II) and La(III) complexes by template reaction of 1,2-bis(2-formylphenyl)ethane with metal nitrate and various diamine
Ilhan, Salih,Temel, Hamdi,Pa?a, Salih,Te?in, Ibrahim
, p. 1402 - 1409 (2010)
Eight new macrocyclic complexes were synthesized by template reaction of 1,4-bis(3-aminopropoxy)butane or (±)-trans-1,2-diaminocyclohexane with metal nitrate and 1,2-bis(2-formylphenyl)ethane and their structures were proposed on the basis of elemental an
Through-space electronic communication of zinc phthalocyanine with substituted [60]Fullerene bearing O2Nxaza-crown macrocyclic ligands
Ghanbari, Bahram,Shahhoseini, Leila,Mahlooji, Niloofar,Gholamnezhad, Parisa,Taheri Rizi, Zahra
, p. 330 - 339 (2017)
Two new macrocyclic ligands containing 17- and 19-membered O2N3-donor aza-crowns anchored to [60]Fullerene were synthesized and characterized by employing HPLC, electrospray ionization mass (ESI-MS), 1H and 13C NMR, UV–vis, IR spectroscopies, as well as powder X-ray diffraction (PXRD) and thermogravimetric analysis (TGA) in solid state. TGA measurements revealed that upon linking each of these macrocycle rings to [60]Fullerene, the decomposition point measured for [60]Fullerene moiety was increased, indicating on the promoted stability of [60]Fullerene backbone during binding to these macrocyclic ligands. Moreover, the ground state non-covalent interactions of [60]Fullerene derivatives of O2Nx (x?=?2, and 3) aza-crown macrocyclic ligands namely, L1–L4 with zinc phthalocyanine (ZnPc) were also investigated by UV–vis absorption, steady state and time resolved fluorescence spectrophotometry in N-methyl-2-pyrrolidone (NMP). The calculation of Stern-Volmer constants (KSV) indicated on existence of an efficient quenching mechanism comprising of the excited singlet state of ZnPc in the presence of L1–L4. The observation of an appropriate correlation between decrease in fluorescence intensity and lifetime parameters led us to propose the occurrence of a static mechanism for the fluorescence quenching of ZnPc in the presence of L1–L3. The binding constants (KBH) of L1–L4/ZnPc were also determined applying the fluorescence quenching experiments. Meanwhile, the incompatibility of both KSV and KBH values found for L4 was also described in terms of structural features using DFT calculations using the B3LYP functional and 6-31G* basis set.
Molecular structure, molecular docking, thermal, spectroscopic and biological activity studies of bis-Schiff base ligand and its metal complexes
Zayed, Ehab M.,Hindy, Ahmed M.M.,Mohamed, Gehad G.
, (2018)
Coordination compounds of Fe(III), Zn(II), Ni(II), Co(II), Cu(II), Cd(II) and Mn(II) ions were synthesized from the ligand [4,4′-((((ethane-1,2-diylbis(oxy))bis(2,1-phenylene))bis(methanylylidene))bis(azanylylidene))diphenol]ethane (H2L) derive
Construction and properties of a phototriggered Cd2+ release system
Zhang, Xu,Chen, Yi
, p. 1346 - 1350 (2011)
A phototriggered Cd2+ release complex has been prepared by using benzothiazoline as a ligand. With visible-light (λ ≥ 400 nm) irradiation, bound Cd2+ can be released from the complex, and the ligand is converted into a benzothiazole
Synthesis and characterization of copper–based anticancer compound; in?vitro interaction studies with DNA/HSA, SOD mimetic, cytotoxic activity and molecular docking investigation
Al–Asbahy, Waddhaah M.,Shamsi, Manal
, p. 1431 - 1446 (2021)
A new copper(II) complex derived from the ligand ethylene [O,O′–bis{5–{(1E)–(2 hydroxyphenyl)methylene]amino} ? 2–hydroxybenzoic acid] was designed, synthesized and characterized by spectroscopic (IR, UV–Vis, ESI–MS, X–ray diffraction, EPR and elemental a
Photorelease of La3+ with turn-on fluorescent detection
Hao, Yongchao,Zhang, Xu,Chen, Yi
, p. 47 - 52 (2014)
Photorelease of La3+ with turn on fluorescent detection is described. Complex (1) is synthesized by treatment 2,2′-(((ethane-1,2- diylbis(oxy)bis(2,1-phenylene))bis(methanylylidene)) bis(azanylylidene))diphenol with LaCl3·7H2/s
Synthesis, physico-chemical, structure and supramolecular properties of pinacolophanes: Versatile synthetic precursors to stilbenophanes
Darabi, Hossein Reza,Karouei, Mohammad Hashemi,Tehrani, Mohammad Jafar,Aghapoor, Kiomars,Ghasemzadeh, Mitra,Neumueller, Bernhard
, p. 462 - 469 (2011)
Novel pinacolophanes tethered by methyl and ethyl chains were synthesised and characterised. The stereochemistry of these small-sized cyclophanes was determined by NMR spectral data as well as by single-crystal X-ray analysis. Intramolecular hydrogen bond
Efficient synthesis of novel benzylidene barbituric and thiobarbituric acid derivatives containing ethyleneglycol spacers
Faryabi, Malihe,Sheikhhosseini, Enayatollah
, p. 427 - 432 (2015)
Knoevenagel condensation reaction of ethylene glycol-based aromatic aldehyde with barbituric acid derivatives in ethanol produced novel benzylidene barbituric and thiobarbituric acid derivatives which contain good yields of ethylene glycol spacers. Structures of the products were deduced from their IR, 1H-NMR, and 13C-NMR spectroscopy and mass spectra.
Dinuclear platinum(II) complexes of imidazophenanthroline-based bridging ligands as potential anticancer agents: synthesis, characterization, and in vitro cytotoxicity studies
Alexander, Carlson,Prajith,Priyanka,Nithyakumar,Arockia Samy
, (2019)
Abstract: The synthesis and characterization of the dinucleating ligands 1,2-bis(2-(1H-imidazo[4,5-f][1,10]phenanthrolin-2-yl)phenoxy)ethane (L1) and 1,2-bis(2-(1H-imidazo[4,5-f][1, 10]phenanthrolin-2-yl)phenoxy)hexane (L2) and their dinuclear complexes [
A comparative molecular structure – NLO activity study of ortho-bridged dibenzaldehydes: Synthesis, crystal structure, SHG, and DFT studies
Jothi, A. Irudaya,Paul, M. Wilson Bosco,Alexander
, (2021/11/16)
Structural and second order nonlinear optical characteristics of four ortho-bridged dibenzaldehydes with alkyloxy- and xylenyloxy linkers are compared from the XRD, UV-Vis-NIR spectroscopic, SHG, and DFT studies. Interruption of electron polarization by π
Green synthesis of novel bis(hexahydro-1H-xanthene-1,8(2H)-diones) employing p-toluenesulfonic acid (p-TSA) as a solid acid catalyst
Darweesh, Ahmed F.,Salama, Soad K.,Abdelhamid, Ismail A.,Elwahy, Ahmed H. M.
, p. 471 - 484 (2020/10/30)
Green synthesis of novel bis(hexahydro-1H-xanthene-1,8(2H)-diones) which are linked to aliphatic or aromatic spacers via ether or ester linkages were performed in good to excellent yields by the reaction of 5,5-dimethyl-1,3-cyclohexanedione with the appropriate bis-aldehydes using p-TSA as an organic acid solid catalyst. The reaction of the bis-aldehydes with barbituric acid or 1,3-dimethylbarbituric acid instead of 5,5-dimethyl-1,3-cyclohexanedione afforded the corresponding Knoevenagel condensation adducts in good yield.