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125Te NMR Probes of Tellurium Oxide Crystals: Shielding-Structure Correlations
Inorganic Chemistry ( IF 4.6 ) Pub Date : 2017-12-29 00:00:00 , DOI: 10.1021/acs.inorgchem.7b02913 Mounesha N. Garaga 1 , Ulrike Werner-Zwanziger 1 , Josef W. Zwanziger 1
Inorganic Chemistry ( IF 4.6 ) Pub Date : 2017-12-29 00:00:00 , DOI: 10.1021/acs.inorgchem.7b02913 Mounesha N. Garaga 1 , Ulrike Werner-Zwanziger 1 , Josef W. Zwanziger 1
Affiliation
The local environments around tellurium atoms in a series of tellurium oxide crystals were probed by 125Te solid-state NMR spectroscopy. Crystals with distinct TeOn units (n from 3 to 6), including Na2TeO3, α-TeO2 and γ-TeO2, Te2O(PO4)2, K3LaTe2O9, BaZnTe2O7, and CsYTe3O8 were studied. The latter four were synthesized through a solid-state process. X-ray diffraction was used to confirm the successful syntheses. The 125Te chemical shift was found to exhibit a strong linear correlation with the Te coordination number. The 125Te chemical-shift components (δ11, δ22, and δ33) of the TeO4 units were further correlated to the O–Te–O-bond angles. With the aid of 125Te NMR, it is likely that these relations can be used to estimate the coordination states of Te atoms in unknown Te crystals and glasses.
中文翻译:
氧化碲晶体的125 Te NMR探针:屏蔽结构相关性
通过125 Te固态NMR光谱探测了一系列氧化碲晶体中碲原子周围的局部环境。具有不同的TeO晶体Ñ单元(Ñ从3至6),其中包括的Na 2的TeO 3,α-的TeO 2和γ-的TeO 2,碲2 O(PO 4)2,K 3晚2 ö 9,BaZnTe 2 ö 7和CsYTe 3 O 8被研究了。后四个是通过固态过程合成的。X射线衍射被用于确认成功的合成。在125特化学位移被发现表现出与特配位数很强的线性关系。的125特化学位移分量(δ 11,δ 22,δ 33)的的TeO的4单位被进一步关联于O型的TeO-键角。借助125 Te NMR,这些关系很可能可以用来估计未知Te晶体和玻璃中Te原子的配位态。
更新日期:2017-12-29
中文翻译:
氧化碲晶体的125 Te NMR探针:屏蔽结构相关性
通过125 Te固态NMR光谱探测了一系列氧化碲晶体中碲原子周围的局部环境。具有不同的TeO晶体Ñ单元(Ñ从3至6),其中包括的Na 2的TeO 3,α-的TeO 2和γ-的TeO 2,碲2 O(PO 4)2,K 3晚2 ö 9,BaZnTe 2 ö 7和CsYTe 3 O 8被研究了。后四个是通过固态过程合成的。X射线衍射被用于确认成功的合成。在125特化学位移被发现表现出与特配位数很强的线性关系。的125特化学位移分量(δ 11,δ 22,δ 33)的的TeO的4单位被进一步关联于O型的TeO-键角。借助125 Te NMR,这些关系很可能可以用来估计未知Te晶体和玻璃中Te原子的配位态。