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Observation of Non‐FCC Copper in Alkynyl‐Protected Cu53 Nanoclusters
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-02-25 , DOI: 10.1002/anie.202001185
Mei Qu 1, 2 , Fu‐Qiang Zhang 2 , Dian‐Hui Wang 1 , Huan Li 1 , Juan‐Juan Hou 2 , Xian‐Ming Zhang 1, 2
Angewandte Chemie International Edition ( IF 16.1 ) Pub Date : 2020-02-25 , DOI: 10.1002/anie.202001185
Mei Qu 1, 2 , Fu‐Qiang Zhang 2 , Dian‐Hui Wang 1 , Huan Li 1 , Juan‐Juan Hou 2 , Xian‐Ming Zhang 1, 2
Affiliation
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The only feasible access to non‐face‐centered cubic (FCC) copper was by physical vapor deposition under high vacuum. Now, non‐FCC copper is observed in a series of alkynyl‐protected Cu53 nanoclusters (NCs) obtained from solution‐phase synthesis. Determined by single‐crystal X‐ray crystallography, the structures of Cu53(C≡CPhPh)9(dppp)6Cl3(NO3)9 and its two derivatives reveal an ABABC stacking sequence involving 41 Cu atoms. It can be regarded as a mixed FCC and HCP structure, which gives strong evidence that Cu can be arranged in non‐FCC lattice at ambient conditions when proper ligands are provided. Characterization methods including X‐ray absorption fine structure, XPS, ESI‐MS, UV/Vis, Auger spectroscopy, and DFT calculations were carried out. CuII was shown to successively coordinate with introduced ligands and changed to CuI after bonding with phosphine. The following addition of NaBH4 and the aging step further reduced it to the Cu53 NC.
中文翻译：
炔基保护的Cu53纳米簇中非FCC铜的观察
只能通过在高真空下进行物理气相沉积来获得非面心立方（FCC）铜。现在，在从溶液相合成获得的一系列炔基保护的Cu 53纳米团簇（NC）中观察到了非FCC铜。通过单晶X射线晶体学确定，Cu 53（C≡CPhPh）9（dppp）6 Cl 3（NO 3）9的结构其两个衍生物揭示了一个涉及41个Cu原子的ABABC堆积序列。它可以看作是FCC和HCP的混合结构，有力的证据表明，只要提供适当的配体，Cu就可以在环境条件下以非FCC晶格排列。表征方法包括X射线吸收精细结构，XPS，ESI-MS，UV / Vis，俄歇光谱和DFT计算。的Cu II显示出与导入配体依次坐标和改变成Cu我与膦接合之后。随后添加的NaBH 4和时效步骤将其进一步还原为Cu 53 NC。
更新日期：2020-02-25
中文翻译：
炔基保护的Cu53纳米簇中非FCC铜的观察
只能通过在高真空下进行物理气相沉积来获得非面心立方（FCC）铜。现在，在从溶液相合成获得的一系列炔基保护的Cu 53纳米团簇（NC）中观察到了非FCC铜。通过单晶X射线晶体学确定，Cu 53（C≡CPhPh）9（dppp）6 Cl 3（NO 3）9的结构其两个衍生物揭示了一个涉及41个Cu原子的ABABC堆积序列。它可以看作是FCC和HCP的混合结构，有力的证据表明，只要提供适当的配体，Cu就可以在环境条件下以非FCC晶格排列。表征方法包括X射线吸收精细结构，XPS，ESI-MS，UV / Vis，俄歇光谱和DFT计算。的Cu II显示出与导入配体依次坐标和改变成Cu我与膦接合之后。随后添加的NaBH 4和时效步骤将其进一步还原为Cu 53 NC。
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