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×î½ü×ö³öÒ»¸öMOFµÄµ¥¾§£¬Ï뾡¿ìͶ³ö£¬µ«ÊÇ·¢ÏÖÉó¸åÈ˶Ô×Ô¼ºµÄ¾§Ìå½á¹¹·ÖÎöÉÏÓÐЩÒâ¼û¡£ÓÉÓÚ×Ô¼ºÒ²ÊǸոսøÈëÕâ¸öÁìÓò£¬ËùÒÔ»¹Óкö಻¶®µÄµØ·½£¬ÏëÇë¸÷λţÈ˰ïæ·ÖÎöÒ»ÏÂÕâ¸ö¾§ÌåµÄ½á¹¹¡£ ÒÔÏÂΪÉó¸åÈ˵ÄÌá³öµÄÒâ¼û£º As an example: It is stated that "...each asymmetric unit contains one crystallographic independent zinc atom and two unique 1,3-diacetoxy-imidazole molecules." which is false: only one cation on a symmetry element (amounting for half an independent unit) and one unique anion fill the asymmetric unit, with z=8. The authors have decided (and they are fully entitled to do so) to describe the elemental structural unit as twice as much, with z=4, but then the unit IS NOT FULLY independent. The description as a 3D framework is also wrong: this is not a 3D but a 2D covalent framework parallel to (001), linked by extremely weak C-H...O and pi...pi contacts (See attached files to find some RELEVANT non-covalent interactions. The H-bond mentioned as responsible of the link between 2D structures is nonsense (H..O too long with a rather small angle). The real link (even if weak) is the one involving H3. ½ð±Ò²»¶à£¬Èç¹û°ïæ½âÎöµÄÕæµÄºÜÈÏÕæ£¬ºÜÔ¸ÒâÔÙ´Î×·¼Ó¸ø´ó¼Ò£¬ÔٴθÐл´ó¼Ò£¡£¡£¡ |
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