Crystals of thallium-holmium polyphosphate TIHo(PO3)4 were grown by flux method technique and characterized by single crystal X-ray diffraction. Structure of TIHo(PO3)4 was solved for the first time, and it crystallized in the monoclinic P21/n space group with the following unit-cell dimensions: a=1.02225(3) nm, b=0.88536(2) nm, c=1.09541(4) nm, β=105.888(1)°, V=0.95354(5) nm3 and Z=4. The crystal structure was solved from 2174 independent reflections with final R1(F2)=0.0442 and Rw(F<2)=0.0861 refined with 164 parameters. The atomic arrangement could be described as a long chain polyphosphate organization. Holmium atoms had eighffold coordination. The structure of T1Ho(PO3)4 consisted of HoO8 polyhedra sharing oxygen atoms with phosphoric group PO4. Infrared spectrum was investigated at room temperature in the frequencies range, 350-4000 cm-1, showing some characteristic vibration bands of infinite chain structure of PO4 tetrahedra linked by bridging oxygen.
参考文献
| [1] | Blasse G;Grabmaier B C.Lumainescent Materials[M].Springer-verlag,1994 |
| [2] | Weber M J.Handbook of Laser Wavelengths[M].CRC Press,Inc,1999 |
| [3] | Otsuka K;Yamada T .Transversely pumped LNP laser performance[J].Applied Physics Letters,1975,26:310. |
| [4] | Koizumi H .An efficient laser material,lithium neodymium phosphate LiNdP4O12[J].Acta Crystallographica,1976,B32:266. |
| [5] | Miyazawa S;Koizumi H;Kubodera K;Iwasaki H .Epitaxial growth of KNdP4O12 laser waveguides[J].Journal of Crystal Growth,1979,47:351. |
| [6] | Hong H Y P .Crystal structure of potassium neodymium metaphosphate,KNdP2O12,a new acentric laser material[J].Materials Research Bulletin,1975,10:1105. |
| [7] | Rzaigui M;Trabelsi M;Kbir Ariguib N .Phase equilibrium relations in the pseudo binary system TIPO3-Ce(PO3)3[J].Journal of Solid State Chemistry,1983,50:86. |
| [8] | Palkina K K;Saifuddinov V Z;Kuznetsov V G;Chudinova N N .The crystal structure of TINd(PO3)4[J].Doklady Akademii Nauk SSSR,1977,237(04):837. |
| [9] | Ferid M;Trabelsi M;Ariguib N K .Etude du systeme TIPO3LaP3O9[J].Thermochimica Acta,1984,81:175. |
| [10] | Amami J;Ferid M;Trabelsi-Ayedi M .Crystal structure and spectroscopic studies of NaGd(PO3)4[J].Materials Research Bulletin,2005,40:1144. |
| [11] | Amami J;Horchani K;Merle D;Ferid M .Caracterisation et etude structurale de NaHo(PO3)4[J].J Phys Ⅳ,2004,122:111. |
| [12] | Win G X .version 1.63ies of PbO-BiO1.5-GaO1.5 glasses[J].Journal of the American Ceramic Society,1994,77(04):1017. |
| [13] | Farrugia L J .WinGX suite for small-molecule single-crystal crystallography[J].Journal of Applied Crystallography,1999,32:837. |
| [14] | Sheldrick G M.SHELXS 97 Program for Crystal Structure Determination[M].Germany:University of Gottingen,1997 |
| [15] | Sheldrick G M.SHELXL-97 Program for the Refinement of Crystal Structures[M].Germany:University of Gottingen,1997 |
| [16] | Corbridge D E C;Lowe E J .Infrared spectra of some inorganic phosphorus compounds[J].Journal of the Chemical Society,1954,B15:493. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%