基于甲酸配体和过渡金属阳离子的配位聚合物的磁结构相关性

IF 4.7 2区化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR

Inorganic Chemistry Pub Date : 2025-04-10 DOI:10.1021/acs.inorgchem.4c04737

Francisco Rubio-Sepúlveda, Alicia Manjón-Sanz, Laura Cañadillas-Delgado, José Alberto Rodríguez-Velamazán, Lukas Keller, Denis Sheptyakov, Diego Venegas-Yazigi, Verónica Paredes-García, Javier Campo

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引用次数: 0

摘要

我们介绍了五种基于甲酸配体的三维配位聚合物（CPs），即 M = Co2+ 和 Ni2+ 的 [NaM(HCOO)3(H2O)]n 以及 M = Mn2+、Co2+ 和 Ni2+ 的 [KM(HCOO)3]n、为[NaCo(HCOO)3(H2O)]n 和[NaNi(HCOO)3(H2O)]n 引入了 P21 空间群的三种新核结构，为[KNi(HCOO)3]n 引入了具有手性核结构的 P6322 Sohncke SG，以及两种中心 C2/c 同构物[KMn(HCOO)3]n 和[KCo(HCOO)3]n。磁性测量结果表明，反铁磁性相互作用在五种晶体中占主导地位，反铁磁性 zJ/kB 平均值从 -1.18 到 -94.9 K。此外，还进行了单晶和粉末中子衍射实验来阐明磁性结构，证实了反铁磁有序和可能的自旋悬臂，从而了解了这些系统的磁交换途径拓扑结构。

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Magneto-Structural Correlations in Coordination Polymers Based on Formate Ligand and Transition Metal Cations

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Magneto-Structural Correlations in Coordination Polymers Based on Formate Ligand and Transition Metal Cations

We present five three-dimensional (3D) coordination polymers (CPs) based on the formate ligand, [NaM(HCOO)₃(H₂O)]_n with M = Co²⁺ and Ni²⁺ and [KM(HCOO)₃]_n with M = Mn²⁺, Co²⁺, and Ni²⁺, introducing three new nuclear structures with the P2₁ space group for [NaCo(HCOO)₃(H₂O)]_n and [NaNi(HCOO)₃(H₂O)]_n, and P6₃22 Sohncke SG with chiral nuclear structure for [KNi(HCOO)₃]_n, along two centric C2/c isomorphs [KMn(HCOO)₃]_n and [KCo(HCOO)₃]_n. Magnetic measurements indicate that antiferromagnetic interactions predominate in the five CPs, with averaged antiferromagnetic zJ/k_B mean values from −1.18 to −94.9 K. Moreover, magnetic long-range order (LRO) at low temperatures is evidenced by the magnetic susceptibility and heat capacity measurements. Furthermore, single-crystal and powder neutron diffraction experiments were performed to elucidate the magnetic structure, confirming the antiferromagnetic ordering with possible spin canting, thus understanding these systems’ magnetic exchange pathway topology.

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来源期刊

Inorganic Chemistry 化学-无机化学与核化学

CiteScore

7.60

自引率

13.00%

发文量

1960

审稿时长

1.9 months

期刊介绍： Inorganic Chemistry publishes fundamental studies in all phases of inorganic chemistry. Coverage includes experimental and theoretical reports on quantitative studies of structure and thermodynamics, kinetics, mechanisms of inorganic reactions, bioinorganic chemistry, and relevant aspects of organometallic chemistry, solid-state phenomena, and chemical bonding theory. Emphasis is placed on the synthesis, structure, thermodynamics, reactivity, spectroscopy, and bonding properties of significant new and known compounds.