Two types of Cu(II)–AMP–4,4′-bipy coordination polymers, {[Cu(AMP)(4,4′-bipy)(H₂O)₃]·5H₂O}n (1) and {[Cu₂(HAMP)₂(4,4′-bipy)₂(H₂O)₄]·2NO₃·11H₂O}n (2) (Na₂AMP = adenosine 5′-monophosphate disodium salt), were synthesised through pH control. X-ray single-crystal diffraction analysis revealed that 1 and 2 are one-dimensional (1D) coordinating coordination polymers. The nucleotide in 1 was not protonated whereas that in 2 was protonated. With the protonated NO₃⁻ in 2 entering the crystal lattice, it plays a role in balancing the charge. The chirality was studied using solid-state circular dichroism (CD) spectroscopy based on the analysis of crystal structures.

中文翻译：

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通过 pH 调节可控合成两种腺苷 5'-单磷酸核苷酸配位聚合物：晶体结构和手性

两种类型的 Cu( II )–AMP–4,4'-bipy 配位聚合物，{[Cu(AMP)(4,4'-bipy)(H ₂ O) ₃ ]·5H ₂ O} n ( 1 ) 和{[Cu ₂ (HAMP) ₂ (4,4'-bipy) ₂ (H ₂ O) ₄ ]·2NO ₃ ·11H ₂ O}n ( 2 ) (Na ₂ AMP = 腺苷 5'-单磷酸二钠盐),通过pH控制合成。X 射线单晶衍射分析表明1和2是一维 (1D) 配位聚合物。核苷酸1未质子化而2 中的已质子化。随着质子化的NO ₃ ^- in 2进入晶格，起到平衡电荷的作用。使用基于晶体结构分析的固态圆二色性 (CD) 光谱研究手性。