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shimeng100無蟲 (初入文壇)
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[求助]
求中文。。。。
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Compound 2 is a mixed-valence pentanuclear cobalt complex and crystallises in the monoclinic C2/c space group (Fig. 3). The central cobalt(II) ion (Co4) has a distorted octahedral coordination sphere comprising oxygen donor atoms from the ligand CH 2 O - arms, a bridging acac ligand and a monodentate MeOH group. The outer cobalt(II) ions (Co2, Co5) have distorted octahedral { CoO 6 } coordination spheres. Co5 is ligated by four oxygen donors from the ligand alkoxide arms and a further two from a chelating acac group. Co2 is bound to two ligand alkoxide arms and four oxygen atoms from two acac groups. These three Co(II) centres form a coupled trinuclear unit, while the remaining two cobalt centres (Co3 and Co6) are trivalent and are each encapsulated by one H 2 L 4- ligand, giving an { N 2 O 4 } ligand donor set. Oxidation states were assigned on the basis of bond valence sum calculations, by consideration of bond lengths and charge balance. |
至尊木蟲 (著名寫手)
| 化合物2是一個混合價態(tài)的五元環(huán)的鈷復合物,可以在單斜的C2/c空間基團中體現(xiàn)出來。中心的二價鈷離子(4號鈷原子)有一個扭曲的八面體配位的球體,這其中的配體包含有來自于配體中CH2O(亞甲氧基)鍵中的供電子的氧原子、一個橋聯(lián)的acac(乙酰丙酮基)配體和一個單齒MeOH基團。外部的二價鈷離子(2.5號鈷)有扭曲的八面體(CoO6,六氧化鈷,一個Co和六個O配位)配位的球體。5號鈷與來自于四個配體烷氧鍵中的氧原子和一個acac基團中兩個氧配位。2號鈷與來自于兩個配體烷氧鍵中的氧原子和兩個acac基團中的四個氧原子配位。這三個二價鈷中心形成了一個耦合的三元環(huán)單元,而剩下的兩個鈷中心(3,6號鈷)則是三價的,而且它們每個都和一個H2L4-的基團配位,產(chǎn)生了一個(N2O4)的配體供體。考慮到鍵長和價態(tài)平衡,氧化態(tài)須建立在價鍵總數(shù)計算的基礎上。 |

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