S-Heptazine N-ligand based luminescent coordination materials: synthesis, structural and luminescent studies of lanthanide–cyamelurate networks

Abstract

Various series of lanthanide metal-organic networks denoted Ln-Cy (Ln = La, Ce, Pr, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb), were synthesized under solvothermal conditions using potassium cyamelurate...

A0.5H2C6N7O3·4H2O (A = Ca2+, Sr2+) iso-cyamelurates with ultra-large π-conjugated group and excellent nonlinear optical properties

“…The colorless plate crystals Ca 0. 45 Fig. 2 shows the UV-Vis-NIR diffuse reflection spectra of I and II.…”

“…Such a weight loss process is similar to LnC 6 N 7 O 3 ·7H 2 O (Ln = La, Ce, Pr, Sm, Eu, Gd, Tb, Dy, and Tm) which have been reported previously. 45…”

Two different pore architectures of cyamelurate-based metal–organic frameworks for highly selective CO2 capture under ambient conditions

“…In our previous work, we have highlighted different possible coordination modes of cyamelurate–lanthanide systems, resulting in four different types of coordination systems; we observed the Ln contraction effect on the ionic radii, which affects the coordination spheres along the lanthanide series. 34 Herein, because of the position of its ionic radius in the series, the Nd 3+ ion allows different coordination modes and jumps from a simple molecular complex configuration to an extended 3D coordination network.…”

Near-Infrared-Driven β-NaYF4:Yb,Tm,Gd/Ni-MOF Nanocomposites for Efficient Sterilization and Degradation of Organic Contaminants

“…The β-NaYF 4 :Yb,Tm,Gd upconversion material has been identified as a potential activator for Ni-MOF photocatalysts . To this end, a two-step hydrothermal method was employed to synthesize highly stable β-NaYF 4 :Yb,Tm,Gd/Ni-MOF (UCNR/Ni-MOF, UNM) nanocomposites (Scheme ).…”

“…17 The β-NaYF 4 :Yb,Tm,Gd upconversion material has been identified as a potential activator for Ni-MOF photocatalysts. 18 To this end, a two-step hydrothermal method was employed to synthesize highly stable β-NaYF 4 :Yb,Tm,Gd/Ni-MOF (UCNR/Ni-MOF, UNM) nanocomposites (Scheme 1). The photocatalytic activity of UNM was then evaluated using organic dye RhB, E. coli, and S. aureus as models, under 980 nm NIR illumination.…”