Three-dimensional open-framework zinc phosphates with the structure-directing organic amines acting as ligands

1999 ◽  
Vol 23 (3) ◽  
pp. 303-307 ◽  
Author(s):  
S Neeraj ◽  
Srinivasan Natarajan ◽  
C N. R. Rao
1999 ◽  
Vol 147 (1) ◽  
pp. 154-169 ◽  
Author(s):  
Devicharan Chidambaram ◽  
S. Neeraj ◽  
Srinivasan Natarajan ◽  
C.N.R. Rao

ChemInform ◽  
2001 ◽  
Vol 32 (1) ◽  
pp. no-no
Author(s):  
Amitava Choudhury ◽  
Srinivasan Natarajan ◽  
C. N. R. Rao

2015 ◽  
Vol 51 (24) ◽  
pp. 5066-5068 ◽  
Author(s):  
Jun-Hua Wang ◽  
Qi Wei ◽  
Jian-Wen Cheng ◽  
Huan He ◽  
Bai-Feng Yang ◽  
...  

The simultaneous use of organic amines and inorganic cations as the templates has led to the crystallization of a three-dimensional open-framework layered borate.


2001 ◽  
Vol 11 (4) ◽  
pp. 1181-1191 ◽  
Author(s):  
Ayi A. Ayi ◽  
Amitava Choudhury ◽  
Srinivasan Natarajan ◽  
S. Neeraj ◽  
C. N. R. Rao

2000 ◽  
Vol 39 (19) ◽  
pp. 4295-4304 ◽  
Author(s):  
Amitava Choudhury ◽  
Srinivasan Natarajan ◽  
C. N. R. Rao

2012 ◽  
Vol 455-456 ◽  
pp. 730-734
Author(s):  
Rui Xin Chen ◽  
Ling Yan Xu ◽  
Chang Feng Sun

Generally, open-framework metal phosphites like phosphates, are synthesized under hydrothermal or solvothermal conditions in the presence of organic amines, which may act as structure-directing agent or template to avoid the formation of dense phase, but few of them has been successfully prepared at room temperature which seems to be difficult to synthesize these compounds. In this work, at room temperature, employing n-propylamine as a template, a three-dimensional zinc phosphite (C3H10N) 2·[Zn3(HPO3)4] has been prepared and characterized by single-crystal X-ray diffraction, FTIR, elemental analysis, powder X-ray diffraction, and thermogravimetric analysis. The compound crystallizes in the orthorhombic space group Pccn, with cell parameters, a = 9.839(3) Å, b = 23.356(8) Å, c = 8.970(3) Å, V = 2050.2(8) nm3 and Z = 4.


2015 ◽  
Vol 71 (4) ◽  
pp. 330-337 ◽  
Author(s):  
Sabina Kovač ◽  
Ljiljana Karanović ◽  
Tamara Đorđević

Two isostructural diarsenates, SrZnAs2O7(strontium zinc diarsenate), (I), and BaCuAs2O7[barium copper(II) diarsenate], (II), have been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction. The three-dimensional open-framework crystal structure consists of corner-sharingM2O5(M2 = Zn or Cu) square pyramids and diarsenate (As2O7) groups. Each As2O7group shares its five corners with five differentM2O5square pyramids. The resulting framework delimits two types of tunnels aligned parallel to the [010] and [100] directions where the large divalent nine-coordinatedM1 (M1 = Sr or Ba) cations are located. The geometrical characteristics of theM1O9,M2O5and As2O7groups of known isostructural diarsenates, adopting the general formulaM1IIM2IIAs2O7(M1II= Sr, Ba, Pb;M2II= Mg, Co, Cu, Zn) and crystallizing in the space groupP21/n, are presented and discussed.


CrystEngComm ◽  
2021 ◽  
Author(s):  
Jing-Wei Yu ◽  
Hai-Jiao Yu ◽  
Zhi-Yuan Yao ◽  
Zi-Han Li ◽  
Qiu Ren ◽  
...  

A water stable proton-conducting material (NH4)5[Zr3(OH)3F6(PO4)2(HPO4) (ZrP) was hydrothermally synthesized. The three-dimensional (3D) framework of ZrP is composed of ZrF2O4 octahedra and HxPO4 phosphate units and forming 18-ring channels through...


2002 ◽  
Vol 12 (4) ◽  
pp. 1044-1052 ◽  
Author(s):  
Amitava Choudhury ◽  
S. Neeraj ◽  
Srinivasan Natarajan ◽  
C. N. R. Rao

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