Zinc and cadmium complexes based on bis-(1H-tetrazol-5-ylmethyl/ylethyl)-amine ligands: structures and photoluminescence properties

Wang, Duo-Zhi; Fan, Jianzhong; Jia, Dianzeng; Du, Ceng-Ceng

doi:10.1039/c6ce01311b

Cited by 31 publications

(16 citation statements)

References 114 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the luminescence lifetimes of compounds 1 – 3 and 5 are calculated to be 50, 2, 2, and 1 ns, respectively, that arise from a singlet state, much shorter than the ones resulting from a triplet state (>10 –3 s). 60,61…”

Section: Resultsmentioning

confidence: 99%

Series of Cadmium(II) Coordination Polymers Based on a Versatile Multi-N-Donor Tecton or Mixed Carboxylate Ligands: Synthesis, Structure, and Selectively Sensing Property

Guo

Chen

et al. 2019

ACS Omega

View full text Add to dashboard Cite

Five Cd(II) metal–organic frameworks (MOFs), [Cd(HL) 2 ] ( 1 ), [Cd(HL) 2 (H 2 O) 2 ] ( 2 ), [Cd 3 (HL) 2 (obda) 2 ] ( 3 ), [Cd 2 (HL) 2 (ohmbda)(DMA)(H 2 O)] ( 4 ), and [Cd 2 (HL)(btc)(H 2 O) 2 ]·3H 2 O ( 5 ), were prepared by reactions of Cd(NO 3 ) 2 ·4H 2 O with 1-(1 H -imidazol-4-yl)-4-(4 H -tetrazol-5-yl)benzene (H 2 L) or mixed carboxylate ancillary ligands of 1,2-benzenedicarboxylic acid (H 2 obda), 5-hydroxy-1,3-benzenedicarboxylic acid (H 2 ohmbda), and 1,3,5-benzenetricarboxylic acid (H 3 btc), respectively. Their structures have been characterized by single-crystal X-ray diffraction, elemental analysis, infrared spectroscopy (IR), thermogravimetric analysis, and powder X-ray diffraction. Compounds 1 and 2 are supramolecular isomeric frameworks without consideration of the solvent molecules. Complex 1 exhibits a binodal (3, 5)-connected two-dimensional (2D) layer structure with the point (Schläfli) symbol of (5 2 ·6)(5 5 ·6 4 ·7), while complex 2 shows a 2D + 2D → 3D (three-dimensional) framework. Complex 3 is a (3, 5, 6)-connected tetranodal 3D net with the point (Schläfli) symbol of (4·8 2 ) 2 (4 5 ·6·8 4 ) 2 (4 5 ·6 5 ) 2 (4 8 ·6 6 ·8). Compound 4 is a (3, 3, 8)-connected trinodal 3D net with the point (Schläfli) symbol based on a binuclear [Cd 2 N 2 O] subunit, while 5 is a 2-nodal (3, 4)-connected 2D V 2 O 5 -type network based on [Cd 2 N 2 (COO) 2 ] SBU. The studies of molecular sensing properties show that the luminescent MOFs can be employed as fluorescent sensors for the detection of Fe 3+ and nitro compounds. Compound 1 and 3 exhibit quenching responses for Fe 3+ in dimethylformamide solution with detection limits of 2.3 × 10 –6 an...

show abstract

Section: Resultsmentioning

confidence: 99%

Series of Cadmium(II) Coordination Polymers Based on a Versatile Multi-N-Donor Tecton or Mixed Carboxylate Ligands: Synthesis, Structure, and Selectively Sensing Property

Guo

Chen

et al. 2019

ACS Omega

View full text Add to dashboard Cite

show abstract

“…Furthermore, the luminescence decay curve was fitted by exponential function as I(t) = A exp(−t/τ), and the luminescence lifetime of CP 1 was 48.87 ns. The value of luminescence lifetime for CP 1 was fairly shorter than a triplet state (>10 −3 s), in this context, the luminescence emission of CP 1 should derive from a singlet state [40]. The good photoluminescent property of CP 1 provided the impetus to further investigate the quantum yield (QY) and corresponding decay lifetimes.…”

Section: Photoluminescent Propertymentioning

confidence: 94%

A Cd(II) Coordination Polymer Based on Mixed Ligands: Synthesis, Crystal Structure, and Properties

Han

et al. 2019

Crystals

View full text Add to dashboard Cite

A new coordination polymer, namely, [Cd(L)(frda)(H2O)]·0.5L·H2O (1) was synthesized by hydrothermal reaction based on mixed multi-N donor 1-(4-(1H-imidazol-5-yl) phenyl)-1H-1,2,4-triazole (L) and O-donor 2,5-furandicarboxylic acid ligands (H2frda) with CdCl2·2.5H2O. Compound 1 was characterized by single-crystal x-ray diffraction, elemental analysis, and IR spectroscopy. In 1, both the multi-N donor and O-donor frda2− ligands act as linear two-connectors to bridge Cd(II) atoms, forming a two-dimensional (2D) layer. Interestingly, the parallel 2D layers stack in an AAA···mode, and the infinite one-dimensional (1D) channels formed along the a-axis direction, where the uncoordinated L molecules were embedded in the void. Furthermore, the weak interactions including the rich hydrogen bonding and π−π stacking interactions progress the 2D structure into a three-dimensional (3D) supramolecular polymer. Diffuse reflectance spectra and the luminescent property were also investigated.

show abstract

“…It is worth noting that the spin-orbit coupling is contributing for the negative weiss constant (Table 2). 22…”

Section: Comparison Of the Structures 1-6mentioning

confidence: 99%

Syntheses, structures, and magnetic properties of mixed-ligand complexes based on 3,6-bis(benzimidazol-1-yl)pyridazine

Dong

Zhu

et al. 2019

RSC Adv.

Self Cite

View full text Add to dashboard Cite

show abstract

Zinc and cadmium complexes based on bis-(1H-tetrazol-5-ylmethyl/ylethyl)-amine ligands: structures and photoluminescence properties

Abstract: Nine zinc and cadmium coordination compounds with bis-(1H-tetrazol-5-ylmethyl/ylethyl)-amine were synthesized and structurally characterized, and the fluorescent emission and fluorescence lifetime of complexes 1–9 have been investigated and discussed.

Cited by 31 publications

References 114 publications

Series of Cadmium(II) Coordination Polymers Based on a Versatile Multi-N-Donor Tecton or Mixed Carboxylate Ligands: Synthesis, Structure, and Selectively Sensing Property

Series of Cadmium(II) Coordination Polymers Based on a Versatile Multi-N-Donor Tecton or Mixed Carboxylate Ligands: Synthesis, Structure, and Selectively Sensing Property

A Cd(II) Coordination Polymer Based on Mixed Ligands: Synthesis, Crystal Structure, and Properties

Syntheses, structures, and magnetic properties of mixed-ligand complexes based on 3,6-bis(benzimidazol-1-yl)pyridazine

Contact Info

Product

Resources

About