کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1330892 | 978981 | 2010 | 8 صفحه PDF | دانلود رایگان |

A new gadolinium fluoride borate Gd4B4O11F2 was yielded in a Walker-type multianvil apparatus at 7.5 GPa and 1100 °C. Gd4B4O11F2 crystallizes monoclinically in the space group C2/c with the lattice parameters a=1361.3(3) pm, b=464.2(2) pm, c=1374.1(3) pm, and β=91.32(3)° (Z=4). The crystal structure exhibits a structural motif not yet reported from borate chemistry: two BO4-tetrahedra (□) and two BO3-groups (▵) are connected via common corners, leading to the fundamental building block 2▵2□:▵□□▵. In the two crystallographically identical BO4-tetrahedra, a distortion resulting in a very long B–O-bond is found.
A new gadolinium fluoride borate Gd4B4O11F2 could be synthesized via high-pressure/high-temperature synthesis (multianvil technique). The crystal structure exhibits a structural motif not yet reported from borate chemistry: two BO4-tetrahedra (□) and two BO3-groups (▵) are connected via common corners, leading to the fundamental building block 2▵2□:▵□□▵.Figure optionsDownload as PowerPoint slide
Journal: Journal of Solid State Chemistry - Volume 183, Issue 2, February 2010, Pages 471–478