Materials Data on Ta2Mn4O9 by Materials Project

Mn4Ta2O9 is Ilmenite-like structured and crystallizes in the triclinic P1 space group. The structure is three-dimensional. there are twelve inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.94–2.18 Å. In the second Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.85–2.15 Å. In the third Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.89–2.16 Å. In the fourth Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.95–2.11 Å. In the fifth Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.89–2.19 Å. In the sixth Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.88–2.31 Å. In the seventh Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.92–2.14 Å. In the eighth Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.96–2.11 Å. In the ninth Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.88–2.20 Å. In the tenth Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.88–2.32 Å. In the eleventh Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.92–2.15 Å. In the twelfth Ta5+ site, Ta5+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Ta–O bond distances ranging from 1.94–2.13 Å. There are twenty-four inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.40 Å. In the second Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.02–2.86 Å. In the third Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.20–2.39 Å. In the fourth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.02–2.51 Å. In the fifth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.10–2.56 Å. In the sixth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.13–2.52 Å. In the seventh Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.07–2.61 Å. In the eighth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.58 Å. In the ninth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.12–2.48 Å. In the tenth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.05–2.57 Å. In the eleventh Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.22–2.37 Å. In the twelfth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.04–2.41 Å. In the thirteenth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.41 Å. In the fourteenth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.10–2.52 Å. In the fifteenth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.43 Å. In the sixteenth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.67 Å. In the seventeenth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.13–2.50 Å. In the eighteenth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.05–2.64 Å. In the nineteenth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.17–2.36 Å. In the twentieth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.04–2.38 Å. In the twenty-first Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.05–2.43 Å. In the twenty-second Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.45 Å. In the twenty-third Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.55 Å. In the twenty-fourth Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are a spread of Mn–O bond distances ranging from 2.10–2.46 Å. There are fifty-four inequivalent O2- sites. In the first O2- site, O2- is bonded to two Ta5+ and two Mn2+ atoms to form distorted OTa2Mn2 trigonal pyramids that share corners with three OTaMn3 trigonal pyramids and edges with two OTa2Mn2 trigonal pyramids. In the second O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the third O2- site, O2- is bonded to one Ta5+ and three Mn2+ atoms to form distorted corner-sharing OTaMn3 trigonal pyramids. In the fourth O2- site, O2- is bonded in a 2-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the eighth O2- site, O2- is bonded to two Ta5+ and two Mn2+ atoms to form a mixture of distorted edge and corner-sharing OTa2Mn2 trigonal pyramids. In the ninth O2- site, O2- is bonded to two Ta5+ and two Mn2+ atoms to form a mixture of distorted edge and corner-sharing OTa2Mn2 trigonal pyramids. In the tenth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the eleventh O2- site, O2- is bonded in a 2-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the twelfth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the thirteenth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the fourteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the fifteenth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the sixteenth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the seventeenth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the eighteenth O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the nineteenth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the twentieth O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the twenty-first O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the twenty-second O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the twenty-third O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the twenty-fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the twenty-fifth O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the twenty-sixth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the twenty-seventh O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to one Ta5+ and three Mn2+ atoms. In the twenty-eighth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the twenty-ninth O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the thirtieth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the thirty-first O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the thirty-second O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the thirty-third O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the thirty-fourth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the thirty-fifth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the thirty-sixth O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the thirty-seventh O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the thirty-eighth O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the thirty-ninth O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the fortieth O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the forty-first O2- site, O2- is bonded in a distorted see-saw-like geometry to two Ta5+ and two Mn2+ atoms. In the forty-second O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the forty-third O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms. In the forty-fourth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the forty-fifth O2- site, O2- is bonded in a distorted trigonal pyramidal geometry to one Ta5+ and three Mn2+ atoms. In the forty-sixth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the forty-seventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the forty-eighth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the forty-ninth O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the fiftieth O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the fifty-first O2- site, O2- is bonded in a 4-coordinate geometry to one Ta5+ and three Mn2+ atoms. In the fifty-second O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the fifty-third O2- site, O2- is bonded in a distorted see-saw-like geometry to one Ta5+ and three Mn2+ atoms. In the fifty-fourth O2- site, O2- is bonded in a 4-coordinate geometry to two Ta5+ and two Mn2+ atoms.

四锰二钽九氧化物（Mn₄Ta₂O₉）为钛铁矿型结构，结晶于三斜晶系（triclinic）P1空间群，整体为三维空间结构。该体系包含12个不等价的五价钽（Ta⁵+）位点：在第1个五价钽位点中，五价钽以六配位几何与6个二价氧（O²-）原子成键，Ta-O键长分布范围为1.94~2.18 Å；在第2个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.85~2.15 Å；在第3个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.89~2.16 Å；在第4个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.95~2.11 Å；在第5个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.89~2.19 Å；在第6个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.88~2.31 Å；在第7个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.92~2.14 Å；在第8个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.96~2.11 Å；在第9个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.88~2.20 Å；在第10个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.88~2.32 Å；在第11个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.92~2.15 Å；在第12个五价钽位点中，五价钽以六配位几何与6个二价氧原子成键，Ta-O键长分布范围为1.94~2.13 Å。该体系包含24个不等价的二价锰（Mn²+）位点：在第1个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.09~2.40 Å；在第2个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.02~2.86 Å；在第3个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.20~2.39 Å；在第4个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.02~2.51 Å；在第5个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.10~2.56 Å；在第6个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.13~2.52 Å；在第7个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.07~2.61 Å；在第8个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.09~2.58 Å；在第9个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.12~2.48 Å；在第10个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.05~2.57 Å；在第11个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.22~2.37 Å；在第12个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.04~2.41 Å；在第13个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.09~2.41 Å；在第14个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.10~2.52 Å；在第15个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.09~2.43 Å；在第16个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.09~2.67 Å；在第17个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.13~2.50 Å；在第18个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.05~2.64 Å；在第19个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.17~2.36 Å；在第20个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.04~2.38 Å；在第21个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.05~2.43 Å；在第22个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.09~2.45 Å；在第23个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.09~2.55 Å；在第24个二价锰位点中，二价锰以六配位几何与6个二价氧原子成键，Mn-O键长分布范围为2.10~2.46 Å。该体系另有54个不等价的二价氧（O²-）位点：在第1个二价氧位点中，二价氧与2个五价钽、2个二价锰原子成键，形成畸变的OTa₂Mn₂型三角锥，该三角锥可与3个OTaMn₃型三角锥共顶点，同时与2个OTa₂Mn₂型三角锥共边；在第2个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第3个二价氧位点中，二价氧与1个五价钽、3个二价锰原子成键，形成畸变的共顶点OTaMn₃型三角锥；在第4个二价氧位点中，二价氧以二配位几何与2个五价钽、2个二价锰原子成键；在第5个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第6个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第7个二价氧位点中，二价氧以一配位几何与1个五价钽、3个二价锰原子成键；在第8个二价氧位点中，二价氧与2个五价钽、2个二价锰原子成键，形成兼具畸变共边与共顶点特征的OTa₂Mn₂型三角锥；在第9个二价氧位点中，二价氧与2个五价钽、2个二价锰原子成键，形成兼具畸变共边与共顶点特征的OTa₂Mn₂型三角锥；在第10个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第11个二价氧位点中，二价氧以二配位几何与2个五价钽、2个二价锰原子成键；在第12个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第13个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第14个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第15个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第16个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第17个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第18个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第19个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第20个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第21个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第22个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第23个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第24个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第25个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第26个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第27个二价氧位点中，二价氧以畸变三角锥型配位几何与1个五价钽、3个二价锰原子成键；在第28个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第29个二价氧位点中，二价氧以畸变矩形跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第30个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第31个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第32个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第33个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第34个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第35个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第36个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第37个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第38个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第39个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第40个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第41个二价氧位点中，二价氧以畸变跷跷板型配位几何与2个五价钽、2个二价锰原子成键；在第42个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第43个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键；在第44个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第45个二价氧位点中，二价氧以畸变三角锥型配位几何与1个五价钽、3个二价锰原子成键；在第46个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第47个二价氧位点中，二价氧以畸变矩形跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第48个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第49个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第50个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第51个二价氧位点中，二价氧以四配位几何与1个五价钽、3个二价锰原子成键；在第52个二价氧位点中，二价氧以畸变矩形跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第53个二价氧位点中，二价氧以畸变跷跷板型配位几何与1个五价钽、3个二价锰原子成键；在第54个二价氧位点中，二价氧以四配位几何与2个五价钽、2个二价锰原子成键。