Re-examination of the effective ionic radius of five-fold coordinated trivalent Fe ion with peculiar coordination environments and its chemical bonding nature

特殊配位环境下五重配位三价Fe离子的有效离子半径及其化学键性质的再考察

• 批准号: 22540492
• 负责人: NAKATSUKA Akihiko
• 金额: $ 2.75万
• 依托单位: Yamaguchi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22540492/
• 关键词: 5 配位; 有効イオン半径; X 線回折; 化学結合性; 結晶構造; 5配位; Ｘ線回折; X線回折

Crystal chemical study of FeVO4and Pb4Fe3O8Cl, with five-fold coordinated Fe3+, by single crystal X-ray diffraction has been conducted to obtain important knowledge for the relationship between the effective ionic radius and the chemical bonding nature of five-fold coordinated Fe3+. The Fe3+O bond lengths have precisely been dertermined, and Fe3+O bonds with square pyramidal coordination have been suggested to have stronger covalency than those with trigonal bipyramidal coordination.

通过单晶X射线衍射对五重配位Fe3+的FeVO4和Pb4Fe3O8Cl进行晶体化学研究，以获得有效离子半径与五重配位Fe3+化学键性质之间关系的重要知识。 Fe3+O键长已被精确测定，并且四角锥配位的Fe3+O键被认为比三角双锥配位的Fe3+O键具有更强的共价性。

项目成果

Crystal Structures and Hydration States of Cobalt Exchanged Sodium Titanosilicates with Pharmacosiderites-type Structure

药菱铁矿型钴交换钛硅酸钠的晶体结构和水合状态

• 发表时间: 2011
• 作者: A. Woodward;T. Ikegami;Y. Ogai.;R.Titorenkova;K. Fujiwara;R. Titorenkova;R. Titorenkova;R.Titorenkova;K.Fujiwara;R.Titorenkova;K.Fujiwara
• 通讯作者: K.Fujiwara

Static disorders of atoms and experimental determination of Debye-temperature in pyrope : Low- and high-temperature single crystal X-ray diffraction study

原子静态紊乱和镁铝榴石中德拜温度的实验测定：低温和高温单晶 X 射线衍射研究

• 发表时间: 2011
• 期刊: American Mineralogist
• 影响因子: 3.1
• 作者: A.Nakatsuka

Low- and high-temperature single crystal X-ray diffraction study of NaSr2Mg2V3O12 and Na3Sc2V3O12 garnets

NaSr2Mg2V3O12和Na3Sc2V3O12石榴石的低温和高温单晶X射线衍射研究

• 发表时间: 2012
• 作者: A. Nakatsuka;H. Tsukamoto;T. Okimoto;M. Shimokawa;N. Nakayama;A. Yoshiasa
• 通讯作者: A. Yoshiasa

陽イオン間斥力からみたガーネット化合物の結晶化学

从阳离子排斥角度看石榴石化合物的晶体化学

• 发表时间: 2011
• 作者: (T. Ikehata);M. Tomita;T. Mashiko;NY. Sato;中塚晃彦,吉朝朗
• 通讯作者: 中塚晃彦,吉朝朗

XAFS法によるCaGeO_3多形のCa O 有効二体間ポテンシャル解析

XAFS法分析CaGeO_3多晶型物的CaO有效二体势

• 发表时间: 2012
• 作者: T. Osaga;Y. Sakurai and H. Sugawara;小金丸藍,吉朝朗,有馬寛,仲谷友孝,王玲,奥部真樹,中塚晃彦,大高理,杉山和正
• 通讯作者: 小金丸藍,吉朝朗,有馬寛,仲谷友孝,王玲,奥部真樹,中塚晃彦,大高理,杉山和正