Crystal structure, vibrational, and optical investigations of semiorganic nonlinear optical crystal: Bi₃[CS(NH₂)₂]₉Cl₉· 2H₂O

Abstract

Tribismuthnonakisthioureanonachloride dihydrate (TBNTNC), a semiorganic nonlinear optical (NLO) material useful for frequency doubling in the IR region, has been grown by single diffusion gel technique. The grown crystal was confirmed by single crystal XRD and it crystallizes in triclinic system having P 1 space group. Vibrational analysis was carried out for the grown crystal. FTIR and FT-Raman spectral studies were performed for analyzing and assigning the phonon vibrations and to identify the functional group contribution. The optical transmission study was carried out to examine the transmission ability of the crystal. The nonlinear optical property was confirmed by relative second harmonic generation measurement using Nd : YAG laser.

Synthesis, Growth, and Characterization of a New Thiourea and Bismuth Chloride Complex with Excellent Nonlinear Optical Properties

“…The unit cell of DCBPB crystal ( Fig. 1) [19], the coordination modes are (4 + 2), (2 + 4), and (3 + 3).…”

“…Besides, coordinating thiourea with metal halide can provide acentric symmetrical structure, which is required to produce a high-optical transparent NLO crystal with a large nonlinear coefficient [13]. In the past 20 years, several thiourea-based semi-organic NLO compounds have been discovered, such as bis-thiourea cadmium chloride (BTCC) [14], zinc thiourea chloride (ZTC) [15], zinc thiourea sulfate (ZTS) [16], α-bismuth thiourea chloride (α-BTC) [17], β-bismuth thiourea chloride (β-BTC) [18], and bismuth thiourea chloride dihydrate (TBNTNC) [19].…”

Recent advances in linear and nonlinear Raman spectroscopy. Part IV

“…Raman scattering and IR transmittance were used to investigate the room-temperature phonon spectra of the polycrystalline double perovskites Ba 3 In 2 UO 9 , Sr 3 In 2 UO 9 , Ba 3 In 2 WO 9 , and Sr 3 In 2 WO 9 in the work by Sliva et al [205] Sayari et al [206] present a Raman study of the V/III flux ratio effect in InP/InAlAs/InP heterostructures grown by metalorganic chemical vapor deposition (MOCVD). Krishnakumar et al [207] have determined the crystal structure and the vibrational and optical spectra of the semiorganic nonlinear optical crystal Bi 3 [CS(NH 2 ) 2 ] 9 Cl 9 ·2H 2 O. Silva et al [205] used Raman scattering and IR transmittance techniques to investigate the room-temperature phonon spectra of the polycrystalline Ba 3 In 2 UO 9 , Sr 3 In 2 UO 9 , Ba 3 In 2 WO 9 , and Sr 3 In 2 WO 9 double perovskites. Sayari et al [206] carried out a Raman study of the V/III flux ratio effect in InP/InAlAs/InP heterostructures grown by MOCVD.…”

“…Sayari et al [206] carried out a Raman study of the V/III flux ratio effect in InP/InAlAs/InP heterostructures grown by MOCVD. Krishnakumar et al [207] determined the crystal structure, vibrational spectra, and optical spectra of the semiorganic nonlinear optical crystal Bi 3 [CS(NH 2 ) 2 ] 9 Cl 9 ·2H 2 O. Silva et al [208] have investigated the room-temperature Raman spectra of several rare-earth [RE(HCOO) 3 ; RE = La, Pr, Nd, Gd, Tb and Y] formates. Polarized measurements were carried out for La(HCOO) 3 yielding the observation of most of the Raman active phonons predicted by group theoretical analysis.…”

Crystal growth and characterization of a new polymorph of bismuth trithiourea chloride

“…Therefore, many thiourea coordinated NLO compounds have been reported so far, such as BTCC, 17 TSCCC, 12 BTC, 18 ATB, 19 BTCC, 20 and TBNTNC. 21 In this paper, we report a new form of the bismuth trithiourea chloride Bi[CS(NH 2 ) 2 ] 3 Cl 3 (BTC). Single crystals of BTC were obtained through a temperature-lowering method, interestingly, when the as-grown yellow crystals of BTC (named as a-BTC) were exposed in air for several hours, their color turned to orange gradually.…”