Reaction of [Mo3(CO)7(S,O-C6H4-1,2)3]2- with FeCl2 in MeCN at 60℃ affords a new Mo-Fe-S cluster complex containing MoO3S3 unit and mixed-valeut Mo atoms, [Et4N]2[Mo2Fe-(CO)4(O,S-C6H4-1,2)aCl2] (1). 1 is characterized...Reaction of [Mo3(CO)7(S,O-C6H4-1,2)3]2- with FeCl2 in MeCN at 60℃ affords a new Mo-Fe-S cluster complex containing MoO3S3 unit and mixed-valeut Mo atoms, [Et4N]2[Mo2Fe-(CO)4(O,S-C6H4-1,2)aCl2] (1). 1 is characterized by elemental analysis, IR, Mossbauer spectra, X-ray photoelectron spectra and mass spectra. And the structure of 1 is suggested as the structure which contains a [Mo(S,O-C6H4-1,2)3] unit of which the two of three sulfur atoms link to a Mo(CO)4-moiety and the three oxygen atoms are coordinated to a FeCl2 ligand.展开更多
1．I don't think sixteen-year-olds should be allowed to drive．我认为16岁大的人不应允许开车。(p．18)此句是含有情态动词的被动语态,其结构为“情态动词+be+及物动词的过去分词”,否定句是在情态动词的后面加上not,一般疑问...1．I don't think sixteen-year-olds should be allowed to drive．我认为16岁大的人不应允许开车。(p．18)此句是含有情态动词的被动语态,其结构为“情态动词+be+及物动词的过去分词”,否定句是在情态动词的后面加上not,一般疑问句是把情态动词提到旬首。例如：The trees should be watered often．这些树应该常浇水。Food and drink should not be taken into the concert hall．不应该把食物和饮料带进音乐厅。展开更多
1.It is also convenient to live close toyour work.(P18)【考点】形容词convenient的用法【归纳】convenient adj.便利的,方便的。常用结构为It is convenient to/for some-body...不可以说成sb.is convenient。Please come whenever...1.It is also convenient to live close toyour work.(P18)【考点】形容词convenient的用法【归纳】convenient adj.便利的,方便的。常用结构为It is convenient to/for some-body...不可以说成sb.is convenient。Please come whenever it is convenient toyou.方便的时候,请随时来。展开更多
基金Project supported by the National Natural Science Foundation of China.
文摘Reaction of [Mo3(CO)7(S,O-C6H4-1,2)3]2- with FeCl2 in MeCN at 60℃ affords a new Mo-Fe-S cluster complex containing MoO3S3 unit and mixed-valeut Mo atoms, [Et4N]2[Mo2Fe-(CO)4(O,S-C6H4-1,2)aCl2] (1). 1 is characterized by elemental analysis, IR, Mossbauer spectra, X-ray photoelectron spectra and mass spectra. And the structure of 1 is suggested as the structure which contains a [Mo(S,O-C6H4-1,2)3] unit of which the two of three sulfur atoms link to a Mo(CO)4-moiety and the three oxygen atoms are coordinated to a FeCl2 ligand.
文摘1．I don't think sixteen-year-olds should be allowed to drive．我认为16岁大的人不应允许开车。(p．18)此句是含有情态动词的被动语态,其结构为“情态动词+be+及物动词的过去分词”,否定句是在情态动词的后面加上not,一般疑问句是把情态动词提到旬首。例如：The trees should be watered often．这些树应该常浇水。Food and drink should not be taken into the concert hall．不应该把食物和饮料带进音乐厅。
文摘1.It is also convenient to live close toyour work.(P18)【考点】形容词convenient的用法【归纳】convenient adj.便利的,方便的。常用结构为It is convenient to/for some-body...不可以说成sb.is convenient。Please come whenever it is convenient toyou.方便的时候,请随时来。
