Two europium(III) coordination polymers (CPs), namely, poly[[diaquabis(μ₄‐1H‐benzimidazole‐5,6‐dicarboxylato‐κ⁶N³:O⁵,O^5′:O⁵,O⁶:O^6′)(μ₂‐oxalato‐κ⁴O¹,O²:O^1′,O^2′)dieuropium(III)] dihydrate], {[Eu₂(C₉H₄N₂O₄)₂(C₂O₄)(H₂O)₂]·2H₂O}_n (1), and poly[(μ₃‐1H‐benzimidazol‐3‐ium‐5,6‐dicarboxylato‐κ⁵O⁵:O^5′,O⁶:O⁶,O^6′)(μ₃‐sulfato‐κ³O:O′:O′′)europium(III)], [Eu(C₉H₅N₂O₄)(SO₄)]_n (2), have been synthesized via the hydrothermal method and structurally characterized. CP 1 shows a three‐dimensional network, in which the oxalate ligand acts as a pillar, while CP 2 has a two‐dimensional network based on a europium(III)–sulfate skeleton, further extended into a three‐dimensional framework by hydrogen‐bonding interactions. The structural diversity in the two compounds can be attributed to the different acidification abilities and geometries of the anionic ligands. The luminescence properties of 1 display the characteristic europium red emission with CIE chromaticity coordinates (2/3, 0.34). Interestingly, CP 2 shows the characteristic red emission with CIE chromaticity coordinates (0.60, 0.34) when excited at 280 nm and a near‐white emission with CIE chromaticity coordinates (0.38, 0.29) when excited at 340 nm.

中文翻译：

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基于1H-苯并咪唑-5,6-二羧酸酯的euro（III）配位聚合物的阴离子导向组件：结构和发光性能。

两个铕（III）配位聚合物（CPS），即，聚[[二水合二（μ ₄ -1 ħ -苯并咪唑-5,6- dicarboxylato-κ ⁶ Ñ ³：ø ⁵，ø ^5' ：ø ⁵，ø ⁶：ø ^6' ）（μ ₂ -oxalato-κ ⁴ ø ¹，Ò ²：Ô ^1' ，Ò ^2'）dieuropium（III）]二水合物]，{[铕₂（C ₉ H ^ ₄ ñ ₂ ö ₄）₂（C ₂ Ò ₄）（H ₂ O）₂ ]·2H ₂ ö} _Ñ（1），和聚[（μ ₃ -1 ħ苯并咪唑-3-鎓-5,6- dicarboxylato-κ ⁵ ø ⁵：ø ^5' ，ø ⁶：直径：⁶，ö ^6' ）（μ ₃ -sulfato-κ ³ ö：ö '：ø ''）铕（III）]，[Eu的（C ₉ ħ ₅ ñ ₂ ö ₄）（ SO ₄）]_n（ 2），已通过水热法合成并进行了结构表征。CP 1显示了一个三维网络，其中草酸酯配体充当支柱，而CP 2具有一个基于a（III）-硫酸盐骨架的二维网络，并通过氢进一步扩展为三维框架。键相互作用。两种化合物的结构多样性可归因于阴离子配体的不同酸化能力和几何形状。的发光性能1个显示特性铕红色发射与CIE色度坐标（2/3，0.34）。有趣的是，CP 2 显示了在280 nm激发时具有CIE色度坐标（0.60，0.34）的特征红色发射和在340 nm激发时具有CIE色度坐标（0.38，0.29）的近白色发射。