| 24小時(shí)熱門(mén)版塊排行榜 |
| 查看: 2631 | 回復(fù): 10 | ||
sunwei4172至尊木蟲(chóng) (正式寫(xiě)手)
|
[求助]
求晶胞結(jié)構(gòu)(六方相二氧化鍺)
|
|
緊急求助: 有沒(méi)有比較了解二氧化鍺的前輩,幫忙這點(diǎn)一下。 晚輩著急,需要六方相,α-石英結(jié)構(gòu)的二氧化鍺晶胞結(jié)構(gòu)。本人才疏學(xué)淺,請(qǐng)前輩們多多指教。。。 |
鐵桿木蟲(chóng) (職業(yè)作家)
|
α-石英是三方相,六方相是Beta石英。 *data for ICSD #59625 Coll Code 59625 Rec Date 2005/04/01 Chem Name Germanium Oxide Structured Ge O2 Sum Ge1 O2 ANX AX2 D(calc) 4.29 Title A neutron diffraction study of the thermal stability of the alpha- quartz-type structure in germanium dioxide Author(s) Haines, J.;Cambon, O.;Philippot, E.;Chapon, L.;Hull, S. Reference Journal of Solid State Chemistry (2002), 166, 434-441 Unit Cell 4.98535(2) 4.98535(2) 5.64503(4) 90. 90. 120. Vol 121.51 Z 3 Space Group P 31 2 1 SG Number 152 Cryst Sys trigonal/rhombohedral Pearson hP9 Wyckoff c a R Value .028 Red Cell P 4.985 4.985 5.645 90 90 120 121.505 Trans Red 1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000 Comments Neutron diffraction (powder) The structure has been assigned a PDF number (calculated powder diffraction data): 01-073-9109 Rietveld profile refinement applied Temperature in Kelvin: 298 Structure type : Quartz,low Atom # OX SITE x y z SOF H Ge 1 +4 3 a .4512(1) 0 .3333 1. 0 O 1 -2 6 c .3971(2) .3023(1) .2428(1) 1. 0 Lbl Type U11 U22 U33 U12 U13 U23 Ge1 Ge4+ .0088(1) .0069(3) .0070(2) 0 0 .0000(2) O1 O2- .0167(4) .0136(3) .0107(2) .0103(2) .0039(3) .0035(2) *end for ICSD #59625 |
鐵桿木蟲(chóng) (職業(yè)作家)
|
*data for ICSD #66595 Coll Code 66595 Rec Date 1994/01/19 Mod Date 2004/10/01 Chem Name Germanium Oxide Structured Ge O2 Sum Ge1 O2 ANX AX2 D(calc) 4.63 Title Structure refinement of GeO2 polymorphs at high pressures and temperatures by energy-dispersive spectra of powder diffraction Author(s) Yamanaka, T.; Ogata, K. Reference Journal of Applied Crystallography (1991), 24, 111-118 Unit Cell 4.8310(6) 4.8310(6) 5.568(1) 90. 90. 120. Vol 112.54 Z 3 Space Group P 32 2 1 SG Number 154 Cryst Sys trigonal/rhombohedral Pearson hP9 Wyckoff c a R Value .073 Red Cell P 4.831 4.831 5.568 90 90 120 112.539 Trans Red 1.000 0.000 0.000 / 0.000 1.000 0.000 / 0.000 0.000 1.000 Comments Atoms shifted by 0 0 2/3 to fit standard setting The structure has been assigned a PDF number (calculated powder diffraction data): 01-085-1518 Pressure in MPa: 4850 Synchrotron radiation (powder) Structure type : Quartz,low Atom # OX SITE x y z SOF H ITF(B) Ge 1 +4 3 a 0.4470(11) 0 0.6667 1. 0 0.6 O 1 -2 6 c 0.3896(15) 0.3129(12) 0.7480(11) 1. 0 1.4 *end for ICSD #66595 |
鐵桿木蟲(chóng) (職業(yè)作家)
至尊木蟲(chóng) (正式寫(xiě)手)
鐵桿木蟲(chóng) (職業(yè)作家)
至尊木蟲(chóng) (正式寫(xiě)手)
至尊木蟲(chóng) (正式寫(xiě)手)
鐵桿木蟲(chóng) (職業(yè)作家)
至尊木蟲(chóng) (正式寫(xiě)手)
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 0703化學(xué)336分求調(diào)劑 +5 | zbzihdhd 2026-03-15 | 6/300 |
|
|---|---|---|---|---|
|
[考研] 070300化學(xué)319求調(diào)劑 +4 | 錦鯉0909 2026-03-17 | 4/200 |
|
|
[考研] 工科材料085601 279求調(diào)劑 +3 | 困于星晨 2026-03-17 | 3/150 |
|
|
[考博] 26申博 +4 | 八旬速覽 2026-03-16 | 4/200 |
|
|
[考研] 材料工程專(zhuān)碩274一志愿211求調(diào)劑 +6 | 薛云鵬 2026-03-15 | 6/300 |
|
|
[考研] 302求調(diào)劑 +4 | 小賈同學(xué)123 2026-03-15 | 8/400 |
|
|
[考研] 333求調(diào)劑 +3 | 文思客 2026-03-16 | 7/350 |
|
|
[考研] 化學(xué)調(diào)劑0703 +8 | 啊我我的 2026-03-11 | 8/400 |
|
|
[考研] 一志愿985,本科211,0817化學(xué)工程與技術(shù)319求調(diào)劑 +5 | Liwangman 2026-03-15 | 5/250 |
|
|
[基金申請(qǐng)]
今年的國(guó)基金是打分制嗎?
50+3
|
zhanghaozhu 2026-03-14 | 3/150 |
|
|
[考研] 中科院材料273求調(diào)劑 +4 | yzydy 2026-03-15 | 4/200 |
|
|
[考研] 0703化學(xué)調(diào)劑,求各位老師收留 +8 | 秋有木北 2026-03-14 | 8/400 |
|
|
[考研] 中科大材料專(zhuān)碩319求調(diào)劑 +3 | 孟鑫材料 2026-03-13 | 3/150 |
|
|
[考研] 308求調(diào)劑 +5 | 是Lupa啊 2026-03-11 | 5/250 |
|
|
[考研] 一志愿西南交大,材料專(zhuān)碩317求調(diào)劑 +5 | lx8568 2026-03-11 | 5/250 |
|
|
[考研] 材料工程調(diào)劑 +4 | 咪咪空空 2026-03-11 | 4/200 |
|
|
[考研] 求調(diào)劑 +5 | 一定有學(xué)上- 2026-03-12 | 5/250 |
|
|
[考研] 求調(diào)劑 +7 | 18880831720 2026-03-11 | 7/350 |
|
|
[考研] 一志愿山大07化學(xué) 332分 四六級(jí)已過(guò) 本科山東雙非 求調(diào)劑! +3 | 不想理你 2026-03-12 | 3/150 |
|
|
[考博] 2026年博士申請(qǐng) +3 | QwQwQW10 2026-03-11 | 3/150 |
|