Inorganic Chemistry Communications ( IF 4.4 ) Pub Date : 2021-09-07 , DOI: 10.1016/j.inoche.2021.108911 Hanhan Chen 1 , Rongchang Liang 1 , Minna Zhi 1 , Ying Ding 1 , Pengtao Ma 1
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A giant Er16-containing arsenotungstate K28H74[{Er(H2O)3}4{Er(H2O)}2{Er(H2O)2}2{As2W19O67(H2O)}4{AsW9O33}2{W2O6}4][{As2W19O67(H2O)}4{AsW9O33}2{AsO2}2{W2O6}4{{Er(H2O)}2{Er(H2O)2}6}]·227H2O (1) was prepared via the reaction of metastable raw material K14[As2W19O67(H2O)] and Er3+ ion, which was further characterized by IR spectrum, thermogravimetric (TG) analysis, powder X-ray diffraction (XRD), inductively coupled plasma atomic emission spectrometry (ICP) and X-ray single-crystal diffraction. Structural analysis revealed that 1 consists of “wave” type [{Er(H2O)3}4{Er(H2O)}2{Er(H2O)2}2{As2W19O67(H2O)}4{AsW9O33}2{W2O6}4]50− (1a) and [{As2W19O67(H2O)}4{AsW9O33}2{AsO2}2{W2O6}4{Er(H2O)}2{Er(H2O)2}6}]52− (1b) unit. The photoluminescence spectrum of 1 shows the characteristic emission peak of Er3+ in the near-infrared region.
中文翻译：
由亚稳态前驱体 [As2W19O67(H2O)]14− 构建的巨大含 Er16 砷钨酸盐
一个巨大的含Er 16的砷钨酸盐 K 28 H 74 [{Er(H 2 O) 3 } 4 {Er(H 2 O)} 2 {Er(H 2 O) 2 } 2 {As 2 W 19 O 67 (H 2 O)} 4 {AsW 9 O 33 } 2 {W 2 O 6 } 4 ][{As 2 W 19 O 67 (H 2 O)} 4 {AsW9 O 33 } 2 {AsO 2 } 2 {W 2 O 6 } 4 {{Er(H 2 O)} 2 {Er(H 2 O) 2 } 6 }]·227H 2 O ( 1 )亚稳态原料K 14 [As 2 W 19 O 67 (H 2 O)] 与Er 3+ 的反应通过红外光谱、热重 (TG) 分析、粉末 X 射线衍射 (XRD)、电感耦合等离子体原子发射光谱 (ICP) 和 X 射线单晶衍射进一步表征了离子。结构分析表明，1由“波”型 [{Er(H 2 O) 3 } 4 {Er(H 2 O)} 2 {Er(H 2 O) 2 } 2 {As 2 W 19 O 67 (H 2 O)} 4 {AsW 9 O 33 } 2 {W 2 O 6 }4 ] 50− ( 1a ) 和 [{As 2 W 19 O 67 (H 2 O)} 4 {AsW 9 O 33 } 2 {AsO 2 } 2 {W 2 O 6 } 4 {Er(H 2 O)} 2 {Er(H 2 O) 2 } 6 }] 52− ( 1b ) 单元。的光致发光光谱1示出了铒的特征发射峰3+在近红外区域。
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