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Hydrothermal Synthesis and Crystal Structure of a Novel 3-D Complex K_4[(VO)_(12)O_6B_(18)O_(38)(OH)_4]·6(H_3O)·17H_2O

Jiahong Chen

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Abstract

A hydrothermal reaction of V2O5,H3BO3,KSCN,NH2CH2CH2NHCH2CH2OH,CuCl·H2O and H2O in a molar ratio of 1∶5∶2∶2∶2∶500 gives a black block crystal K4 [(VO)12O6B18O38(OH)4] · 6(H3O)·17H2O.It crystallizes in a orthorhombic system with space group Pbca and unit cell parameters a=1.9193(4)nm,b=1.8415(4)nm,c=1.9231(4)nm,V=6.797(2)nm3,Z=4,R=0.0564,WR2=0.1649.The structure consists of a [(VO)12O6B18O38(OH)4]10-cluster,which is connected by K+ through K-O ionic bond and plenty of hydrogen bonds to form a 3-dimension net structure.The [(VO)12O6B18O38(OH)4]10-cluster consists of a puckered B18O38(OH)4 ring sandwiched between two triangles of six edge-sharing vanadium atoms.The oxidation states of vanadium in the compound are V(Ⅳ) and V(Ⅴ) in a molar ratio of 8∶4.

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A hydrothermal reaction of V2O5,H3BO3,KSCN,NH2CH2CH2NHCH2CH2OH,CuCl·H2O and H2O in a molar ratio of 1∶5∶2∶2∶2∶500 gives a black block crystal K4 [(VO)12O6B18O38(OH)4] · 6(H3O)·17H2O.It crystallizes in a orthorhombic system with space group Pbca and unit cell parameters a=1.9193(4)nm,b=1.8415(4)nm,c=1.9231(4)nm,V=6.797(2)nm3,Z=4,R=0.0564,WR2=0.1649.The structure consists of a [(VO)12O6B18O38(OH)4]10-cluster,which is connected by K+ through K-O ionic bond and plenty of hydrogen bonds to form a 3-dimension net structure.The [(VO)12O6B18O38(OH)4]10-cluster consists of a puckered B18O38(OH)4 ring sandwiched between two triangles of six edge-sharing vanadium atoms.The oxidation states of vanadium in the compound are V(Ⅳ) and V(Ⅴ) in a molar ratio of 8∶4.

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Available abstract

A hydrothermal reaction of V2O5,H3BO3,KSCN,NH2CH2CH2NHCH2CH2OH,CuCl·H2O and H2O in a molar ratio of 1∶5∶2∶2∶2∶500 gives a black block crystal K4 [(VO)12O6B18O38(OH)4] · 6(H3O)·17H2O.It crystallizes in a orthorhombic system with space group Pbca and unit cell parameters a=1.9193(4)nm,b=1.8415(4)nm,c=1.9231(4)nm,V=6.797(2)nm3,Z=4,R=0.0564,WR2=0.1649.The structure consists of a [(VO)12O6B18O38(OH)4]10-cluster,which is connected by K+ through K-O ionic bond and plenty of hydrogen bonds to form a 3-dimension net structure.The [(VO)12O6B18O38(OH)4]10-cluster consists of a puckered B18O38(OH)4 ring sandwiched between two triangles of six edge-sharing vanadium atoms.The oxidation states of vanadium in the compound are V(Ⅳ) and V(Ⅴ) in a molar ratio of 8∶4.

Key concepts: Orthorhombic crystal system, Crystallography, Crystal structure, Vanadium, Hydrothermal synthesis, Molar ratio, Cluster (spacecraft), Hydrothermal circulation

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Hydrothermal Synthesis and Crystal Structure of a Novel 3-D Complex K_4[(VO)_(12)O_6B_(18)O_(38)(OH)_4]·6(H_3O)·17H_2O — Research Paper | ScholarLens