A new sodium indium phosphate Na 6In 4[P 7O 24(OH) 5]·4H 2O was synthesized under a mild hydrothermal condition and its structure was determined by means of single-crystal X-ray diffraction methods. The title com...A new sodium indium phosphate Na 6In 4[P 7O 24(OH) 5]·4H 2O was synthesized under a mild hydrothermal condition and its structure was determined by means of single-crystal X-ray diffraction methods. The title compound crystallizes in a hexagonal system, space group P6 3, with a= 0.950 23(5) nm, b=0.950 23(5) nm, c=1.694 2(2) nm, α=90°, β=90°, γ=120°, V=1.324 8(2) nm 3, Z=8, structure refined to R=0.052 8 and wR=0.116 5 for 2 134 independent observed reflections. The three-dimensional network structure consists of helical chains formed by apex-sharing polyhedra. The connection of the chains results in 4- and 8-polyhedral rings and cages centered by three indium metal connecting oxygen atoms formed by three 4-rings. The three-connected oxygen atom is firstly observed in indium phosphate systems.展开更多
Several indium borophosphates have been reported recently,including K In[BP 2 O 8 (OH)]( Ⅰ )and NaIn[BP 2 O 8 (OH)]( Ⅱ ).The latter two compounds were synthesized under mild hydrothermal condit ions,and have the sam...Several indium borophosphates have been reported recently,including K In[BP 2 O 8 (OH)]( Ⅰ )and NaIn[BP 2 O 8 (OH)]( Ⅱ ).The latter two compounds were synthesized under mild hydrothermal condit ions,and have the same molar ratio(M Ⅰ ∶In∶B∶P∶O∶H)in molecular formula but with different structure types.C ompound Ⅰ crystallizes in the triclinic system with space group P1(No.2), a =0.52638(4)nm, b =0.84791(5)nm, c =0.81469(9)nm,α=91.1741(7)°,β=93.061(7) °,γ=79.823(5)°, V =0.3573nm 3 ,Z=2;while compound Ⅱ possesses a monoclinic structure with space group P 2 1 / n (No.14)with a =0.5177(1)nm, b =1.6815(3)nm, c =0.7684(2)nm,β=94.10(3)°, V =0.6672(2)nm 3 ,Z=4.Eight-membered-ring and six-membered-ring are formed by alterna ting borate,phosphate tetrahedra and In-coordination octahedron sharing corner s via common oxygen atoms in compound Ⅰ and Ⅱ respectively.The polyhedra in the structure are oriented along certain dire ction to form alternating layered fragments.These two structure types can be co nsidered as intergrowth structures,which consist of the same layered fragments growing in different orientations.Other structure intergrowth possibilities are also expected in similar systems.CSD: Ⅰ ,409583; Ⅱ ,413343.展开更多
文摘A new sodium indium phosphate Na 6In 4[P 7O 24(OH) 5]·4H 2O was synthesized under a mild hydrothermal condition and its structure was determined by means of single-crystal X-ray diffraction methods. The title compound crystallizes in a hexagonal system, space group P6 3, with a= 0.950 23(5) nm, b=0.950 23(5) nm, c=1.694 2(2) nm, α=90°, β=90°, γ=120°, V=1.324 8(2) nm 3, Z=8, structure refined to R=0.052 8 and wR=0.116 5 for 2 134 independent observed reflections. The three-dimensional network structure consists of helical chains formed by apex-sharing polyhedra. The connection of the chains results in 4- and 8-polyhedral rings and cages centered by three indium metal connecting oxygen atoms formed by three 4-rings. The three-connected oxygen atom is firstly observed in indium phosphate systems.
文摘Several indium borophosphates have been reported recently,including K In[BP 2 O 8 (OH)]( Ⅰ )and NaIn[BP 2 O 8 (OH)]( Ⅱ ).The latter two compounds were synthesized under mild hydrothermal condit ions,and have the same molar ratio(M Ⅰ ∶In∶B∶P∶O∶H)in molecular formula but with different structure types.C ompound Ⅰ crystallizes in the triclinic system with space group P1(No.2), a =0.52638(4)nm, b =0.84791(5)nm, c =0.81469(9)nm,α=91.1741(7)°,β=93.061(7) °,γ=79.823(5)°, V =0.3573nm 3 ,Z=2;while compound Ⅱ possesses a monoclinic structure with space group P 2 1 / n (No.14)with a =0.5177(1)nm, b =1.6815(3)nm, c =0.7684(2)nm,β=94.10(3)°, V =0.6672(2)nm 3 ,Z=4.Eight-membered-ring and six-membered-ring are formed by alterna ting borate,phosphate tetrahedra and In-coordination octahedron sharing corner s via common oxygen atoms in compound Ⅰ and Ⅱ respectively.The polyhedra in the structure are oriented along certain dire ction to form alternating layered fragments.These two structure types can be co nsidered as intergrowth structures,which consist of the same layered fragments growing in different orientations.Other structure intergrowth possibilities are also expected in similar systems.CSD: Ⅰ ,409583; Ⅱ ,413343.
基金National Natural Science Foundation of China(22090041,11974432,92165204)National Key Research and Development Program of China(2018YFA0306001,2022YFA1402802)+4 种基金Guangdong Basic and Applied Basic Research Foundation(2019A1515011337)Natural Science Foundation of Hebei Province(A2021203010)Leading Talent Program of Guangdong Special Projects(201626003)International Quantum Academy of Shenzhen(SIQSE202102)Program for Guangdong Introducing Innovative and Entrepreneurial Teams(2017ZT07C069)。
