tetrahedral coordination

The results indicate that for the glasses studied Fe~ ( 2+) and Fe~ ( 3+) ions are in both tetrahedral and octahedral coordination in the matrix;

研究结果表明：Fe~（2+）和Fe~（3+）离子都可处于四、六两种配位状态；

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The results show that it has regular structure and Ti mostly exists in the form of tetrahedral coordination in the framework.

结果表明该分子筛具有规则的骨架结构，Ti全部以四配位的形式存在于骨架中。

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In the typical tetrahedral geometry, the coordination bond length formed from between B and N on the pyridyl is the most longest.

在四面体构型中，中心B原子与吡啶环上的N原子形成了配位键，且配位键的键长在B原子与临近配体所形成的键长中最长。

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The experimental results show that titanium oxide species exist in a tetrahedral coordination within Ti-MCM-41 with low Ti-content.

结果表明在低钛含量的Ti-MCM-41中，大部分是以四配位存在的。

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