Optical and vibrational properties of nickel integrated germanium Zintl ion clusters

作者: Esra Ogun , Okan Esenturk , Emren Nalbant Esenturk

DOI: 10.1016/J.ICA.2019.02.041

关键词: CrystallographyFluorescence spectroscopyNickelMolecular vibrationAbsorption bandCluster (physics)Molecular electronic transitionChemistrySpectral lineCrystal structure

摘要: Abstract Vibrational and optical properties of Ni-Ge clusters ([Ni2Ge9(PPh3)]2−, [Ni6Ge13(CO)5]4−) have been investigated via UV–Vis, FTIR, Fluorescence spectroscopies. Moreover, frequency time-dependent (TD) electronic transition calculations performed to better characterize experimental findings, due the scarcity vibrational spectroscopic studies on these type in literature. UV–Vis analyses demonstrate a broad absorption band, with maximum at 270 nm for both clusters. [Ni6Ge13(CO)5]4− cluster band is broader has shoulder around 320 nm. modes associated appear low-frequency region FTIR spectra. spectrum very rich as expected higher number atoms structure. Main [Ni2Ge9(PPh3)]2− are observed 318(m) cm−1 130(w) cm−1, those 232(s) cm−1 155(s) cm−1. Similarities between simulated spectra strongly support stable, isolated behavior crystal analysis demonstrates that excitation 260 nm resulted relatively strong emissions 400 nm 410 nm, respectively. two few examples Zintl ion characterized analyses, only ones studied fluorescence spectroscopy.

参考文章(65)
A. Grubisic, H. Wang, X. Li, Y.-J. Ko, F. S. Kocak, M. R. Pederson, K. H. Bowen, B. W. Eichhorn, Photoelectron spectroscopic and computational studies of the Pt@Pb₁₀⁻¹ and Pt@Pb₁₂¹⁻/²⁻ anions. Proceedings of the National Academy of Sciences of the United States of America. ,vol. 108, pp. 14757- 14762 ,(2011) , 10.1073/PNAS.1105052108
Zhong-Ming Sun, Hai Xiao, Jun Li, Lai-Sheng Wang, Pd2@Sn184-: Fusion of Two Endohedral Stannaspherenes Journal of the American Chemical Society. ,vol. 129, pp. 9560- 9561 ,(2007) , 10.1021/JA0728674
H.F. Shurvell, The infrared spectrum of triphenylaluminum Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. ,vol. 23, pp. 2925- 2930 ,(1967) , 10.1016/0584-8539(67)80188-0
A. Welford Castleman, Shiv N. Khanna, Ayusman Sen, Arthur C. Reber, Meichun Qian, Kevin M. Davis, Samuel J. Peppernick, Angel Ugrinov, Mark D. Merritt, From designer clusters to synthetic crystalline nanoassemblies. Nano Letters. ,vol. 7, pp. 2734- 2741 ,(2007) , 10.1021/NL071224J
Barry C. Thompson, Jean M. J. Fréchet, Polymer–Fullerene Composite Solar Cells Angewandte Chemie. ,vol. 47, pp. 58- 77 ,(2008) , 10.1002/ANIE.200702506
Jose M. Goicoechea, Slavi C. Sevov, [(Pd-Pd)@Ge18]4-: a palladium dimer inside the largest single-cage deltahedron. Journal of the American Chemical Society. ,vol. 127, pp. 7676- 7677 ,(2005) , 10.1021/JA051224Q
N. A. D. Carey, H. C. Clark, Metal–metal stretching frequencies Chem. Commun. (London). ,vol. 0, pp. 292- 293 ,(1967) , 10.1039/C19670000292
Gabriela Espinoza-Quintero, Jack C. A. Duckworth, William K. Myers, John E. McGrady, Jose M. Goicoechea, Synthesis and characterization of [Ru@Ge12]3-: an endohedral 3-connected cluster. Journal of the American Chemical Society. ,vol. 136, pp. 1210- 1213 ,(2014) , 10.1021/JA411280V