Effect of methylene chain length of perovskite-type layered [NH₃(CH₂)_nNH₃]ZnCl₄ (n = 2, 3, and 4) crystals on thermodynamic properties, structural geometry, and molecular dynamics

Abstract

1H NMR spin–lattice relaxation times T1ρ of [NH3(CH2)nNH3]ZnCl4 (n = 2, 3, and 4) as a function of inverse temperature. The solid lines represent activation energy.

Study on crystal structure, thermal property, and nuclear magnetic resonance spin-lattice relaxation times of organic-inorganic hybrid [NH 3 (CH 2 ) 6 NH 3 ]ZnCl 4

“…We then conducted a comparison between our study on [NH 3 (CH 2 ) n NH 3 ]ZnCl 4 (n=6) and previous studies on n=2, 3, 4, and 5. [35][36][37][38] By analyzing the physicochemical properties of these organic-inorganic compounds, we examined the impact of the methylene chain length. With an increase in the length of the methylene chain, the thermal stability is enhanced.…”

Investigation of the structure, phase transitions, molecular dynamics, and ferroelasticity of organic–inorganic hybrid NH(CH3)3CdCl3crystals

“…Spin-lattice relaxation time T 1r values were obtained using a p/2 − s pulse by a spinlock pulse of duration s for 1 H and 13 C, and were measured using a previously reported method. 48 Further, the 113 Cd static NMR spectra of the NH(CH 3 ) 3 CdCl 3 crystals were measured at a Larmor frequency of 88.75 MHz, and the chemical shis used CdCl 2 O 8 $6H 2 O as standard samples. The chemical shis and T 1r could not be measured above 420 K because the NMR spectroscopy did not have adequate temperature control at high temperature.…”

Crystal growth, phase transition, and nuclear magnetic resonance of organic–inorganic hybrid perovskite NH2(CH3)2CdCl3

“…The 1 H and 13 C T 1r values of NH 2 (CH 3 ) 2 CdCl 3 crystals were collected using a spin-lock pulse and subsequent FID. The intensity changes in the measured magnetization are calculated using the following equation: 45,46 S(t)/S(0) = exp(-t/T 1r )…”