Helical chain Ag(I) complexes with a tridentate N-donor ligand: syntheses, structural characterization, and properties

2015 ◽  
Vol 70 (12) ◽  
pp. 851-856 ◽  
Author(s):  
Chun-Hua Dai ◽  
Fu-Lin Mao

AbstractThe tridentate N-donor ligand 2,6-di(2-oxazolyl)pyridine (L) reacts with AgClO4 and AgPF6 to yield two new complexes, {[Ag5(L)5](ClO4)5}n (1) and {[Ag5(L)5](PF6)5}n (2), which have been characterized by single-crystal and powder X-ray diffractions, IR spectroscopy, and elemental and thermogravimetric analyses. Complexes 1 and 2 are isotypic, displaying helical chain structures. The fluorescence properties of 1 and 2 were investigated.

2017 ◽  
Vol 72 (8) ◽  
pp. 585-588
Author(s):  
Fu-Lin Mao ◽  
Chun-Hua Dai

AbstractA new cadmium-organic network [Cd(L)(SO4)] (1) [L=1,3-di(4-imidazolyl)benzene] has been synthesized and characterized by single-crystal X-ray structure determination, IR spectroscopy, elemental analysis, and powder X-ray diffraction. The complex crystallizes in the orthorhombic system with space group Pnma and displays a binodal (3,5)-connected 2D network with (42.67.8)(42.6) topology. The fluorescence properties of complex 1 were investigated.


2017 ◽  
Vol 72 (12) ◽  
pp. 937-940 ◽  
Author(s):  
Xiao-Hong Zhu ◽  
Xiao-Chun Cheng ◽  
Yun-Hua Qian

AbstractThe neutral, four-fold protonated pyridine-3,5-dicarbox(3,5-dicarboxylatoanilide) (H4L) reacts with Mn(II) salts under hydrothermal conditions to yield a new complex: [Mn2(L)(H2O)2]·H2O (1), which has been characterized by single crystal X-ray diffraction, infrared spectroscopy, and elemental and thermogravimetric analyses. Complex 1 exhibits a binodal (4,8)-connected 3D framework with flu (412.612.84)(46)2 topology. The magnetic properties of 1 were investigated.


Author(s):  
Shao-Dong Li ◽  
Feng Su ◽  
Cheng-Yong Zhou ◽  
Qi-Long Hu ◽  
Ya-Qi Li ◽  
...  

Two new isostructural complexes, namely, poly[aqua[μ3-2-(4-carboxyphenoxy)terephthalato-κ3 O 1:O 4:O 4′](1,10-phenanthroline-κ2 N,N′)cobalt(II)], [Co(C15H8O7)(C12H8N2)(H2O)] n or [Co(μ3-Hcpota)(phen)(H2O)] n , I, and poly[aqua[μ3-2-(4-carboxyphenoxy)terephthalato-κ3 O 1:O 4:O 4′](1,10-phenanthroline-κ2 N,N′)nickel(II)], [Ni(C15H8O7)(C12H8N2)(H2O)] n or [Ni(μ3-Hcpota)(phen)(H2O)] n , II, have been synthesized by solvothermal reactions. Complexes I and II were fully characterized by IR spectroscopy, elemental analyses, thermogravimetric analyses, and powder and single-crystal X-ray diffraction. They both present two-dimensional structures based on [M 2(μ-COO)2]2+ (M = CoII or NiII) dinuclear metal units with a fes topology and a vertex symbol (4·82). Interestingly, the positions of the two dimeric metal motifs and the two partially deprotonated Hcpota2− ligands reproduce regular flying butterfly arrangements flipped upside down and sharing wings in the ab plane. Magnetic studies indicate antiferromagnetic interactions (J = −5.21 cm−1 for I and −11.53 cm−1 for II) in the dimeric units, with Co...Co and Ni...Ni distances of 4.397 (1) and 4.358 (1) Å, respectively, that are related to double syn–anti carboxylate bridges.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Hai-Wei Kuai ◽  
Xiao-Chun Cheng ◽  
Xiao-Hong Zhu

Abstract The two enantiopure chiral organic ligands 2-[(S)-4-isopropyl-2-oxazolyl]quinoline (L1) and 2-[(S)-4-benzyl-2-oxazolyl]quinoline (L2) react with different silver salts to give rise to three new silver complexes [Ag(L1)2](SbF6) (1), [Ag(L1)(CH3CN)](ClO4) (2), and [Ag(L2)(NO3)] (3), which have been characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental and thermogravimetric analyses. Complexes 1–3 all display discrete mononuclear structures. The nonlinear optical properties of 1–3 were investigated.


2018 ◽  
Vol 73 (6) ◽  
pp. 407-411
Author(s):  
Hai-Wei Kuai ◽  
Tao Hu ◽  
Ding-Yun Jiang ◽  
Xiao-Hong Zhu

AbstractThe hydrothermal reaction of ZnSO4 with 2,5-di(1H-imidazol-4-yl)thiophene (L) at 100°C yields a new complex [Zn(L)(SO4)]n (1). Complex 1 has been characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental and thermogravimetric analyses. It crystallizes in the monoclinic system, space group P21/c with Z=4, and shows a (44.62) network structure. Complex 1 shows fluorescence. Single crystals of L·2H2O were accidentally obtained in hydrothermal reaction attempts of L with MnCl2 at 120°C.


2007 ◽  
Vol 62 (6) ◽  
pp. 823-828
Author(s):  
Okan Zafer ◽  
Hümeyra Paşaoğlub ◽  
O. Ozan Yılan ◽  
Orhan Büyükgüngör

New salts of 2-hydroxyaniline and 2-amino-3-hydroxypyridine with squaric acid were synthesized and characterized by elemental analyses, IR spectroscopy and thermal analyses (TG, DTG and DTA). The crystal structures of bis(2-hydroxyanilinium) squarate, [(C6H8NO+)2(C4O4)2−] (1) and bis(2- amino-3-hydroxy-pyridinium) squarate dihydrate, [(C5H7N2O+)2(C4O4)2−] · 2 H2O (2) were determined by single crystal X-ray diffraction. Both compounds crystallize in the monoclinic system, space group P21/c. The organic ammonium squarates decompose in two thermal steps


2017 ◽  
Vol 72 (3) ◽  
pp. 183-187 ◽  
Author(s):  
Xiao-Hong Zhu ◽  
Jing-Jing Xia ◽  
Hai-Yun Sang ◽  
Jing Chen

AbstractThe hydrothermal reaction of 5,5′-[(pyridine-3,5-dicarbonyl)bis(azanediyl)]diisophthalic acid (H4L) with a Co(II) salt yields the new complex: [Co3(HL)2(H2O)4] (1), which has been characterized by single crystal X-ray diffraction, IR, and elemental and thermogravimetric analyses. Complex1exhibits a binodal (4,8)-connected 2D net structure with (420.68)(46)2topology. The magnetic properties of1were also investigated.


2012 ◽  
Vol 65 (4) ◽  
pp. 366 ◽  
Author(s):  
Chen Xu ◽  
Hong-Mei Li ◽  
Zhi-Qiang Wang ◽  
Wei-Jun Fu ◽  
Yu-Qing Zhang ◽  
...  

A new ferrocene-based ligand 3-chloro-6-pyridazinylferrocene 1 and its N-heterocyclic carbene adducts 2–3 were synthesized and characterized by 1H NMR and IR spectroscopy, ESI-MS, and elemental analysis. Additionally, detailed structures of complexes 2–3 have been determined by single-crystal X-ray analysis. Complex 3 exhibited high catalytic activity for α-arylation of ketones with aryl chlorides. Typically, using 1 mol % catalyst in the presence of 1.5 equivalents of tBuOK as base in dioxane at 100°C provided coupled products in good yields.


2019 ◽  
Vol 74 (5) ◽  
pp. 409-414
Author(s):  
Xiao-Hong Zhu ◽  
Ding-Yun Jiang ◽  
Xiao-Chun Cheng ◽  
Deng-Hao Li ◽  
Wei-Gang Du

AbstractA new Mn(II) complex [Mn2(L)(H2O)3] · (H2O)4.8(1) was synthesizedviathe hydrothermal reaction of MnCl2 · 4H2O withN4,N4′-di(5-isophthalyl)biphenyl-4,4′-dicarboxamide (H4L). Complex1is characterized by single-crystal and powder X-ray diffraction, infrared spectroscopy, and elemental and thermogravimetric analyses.1exhibits a uninodal 5-connected 3Dbnnframework structure with (46.64) topology. The magnetic properties of1were investigated.


2015 ◽  
Vol 70 (2) ◽  
pp. 95-100 ◽  
Author(s):  
Fu-Lin Mao ◽  
Jian-Qing Tao ◽  
Chun-Hua Dai

AbstractThe reaction of Cu(II) nitrate with sodium 2-chlorobenzoate (NaL1) and (E)-1,2-di(pyridin-4-yl)ethene (dpe) yields a new complex [Cu(L1)2(dpe)(H2O)] (1). When Zn(II) nitrate reacts with sodium 4-chlorobenzoate (NaL2) and 1,2-di(pyridin-4-yl)ethane (dpa), [Zn(L2)2(dpa)]·CH3OH (2) is obtained. Complexes 1 and 2 have been characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental and thermogravimetric analyses. 1 shows a 3D CdS network structure with uninodal 4-connected (65.8) topology; complex 2 displays a chain structure.


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