当前位置：
X-MOL 学术
›
Inorg. Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Deprotonating Melamine to Gain Highly Interconnected Materials: Melaminate Salts of Potassium and Rubidium
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2021-10-06 , DOI: 10.1021/acs.inorgchem.1c02383 Arno L Görne 1 , Tanja Scholz 1 , Dietmar Kobertz 2 , Richard Dronskowski 1, 3, 4
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2021-10-06 , DOI: 10.1021/acs.inorgchem.1c02383 Arno L Görne 1 , Tanja Scholz 1 , Dietmar Kobertz 2 , Richard Dronskowski 1, 3, 4
Affiliation
|
A new class of materials, melaminate salts of potassium and rubidium, has been obtained by deprotonating molecular melamine in liquid ammonia. Potassium melaminate KC3N6H5·NH3 and rubidium melaminate RbC3N6H5·1/2NH3 were characterized by single-crystal XRD, showing that the melaminate anion is slightly distorted compared to the neutral molecule due to the ionic imine group, but it still forms extensive hydrogen bonding networks. The melaminate anion also displays an increased coordination ability of μ4 and μ6+1 (the maximum for melamine is μ3). Thermal gravimetry coupled with mass spectrometry evidence a multistep decomposition with liberation of ammonia first and then cyanamide and larger fragments. A plausible decomposition mechanism is proposed. The infrared spectrum allows to identify the fingerprint of the melaminate vibrations such as to partially characterize the also synthesized amorphous sodium melaminate NaC3N6H5·nNH3 and the proposed tripotassium melaminate K3C3N6H3.
中文翻译：
去质子化三聚氰胺以获得高度互连的材料：钾和铷的三聚氰胺盐
通过在液氨中对分子三聚氰胺进行去质子化，获得了一类新材料，即钾和铷的三聚氰胺盐。三聚氰胺钾KC 3 N 6 H 5 ·NH 3和三聚氰胺铷RbC 3 N 6 H 5 ·1/2NH 3通过单晶XRD表征，表明三聚氰胺阴离子与中性分子相比，由于离子亚胺基团，但它仍然形成广泛的氢键网络。三聚氰胺阴离子还显示出增加的 μ 4和 μ 6+1配位能力（三聚氰胺的最大值为 μ 3）。热重分析与质谱联用证明了多步分解，首先释放氨，然后释放氰胺和更大的碎片。提出了一种合理的分解机制。红外光谱允许识别三聚氰胺振动的指纹，例如部分表征同样合成的无定形三聚氰胺钠 NaC 3 N 6 H 5 · n NH 3和建议的三聚氰胺三钾 K 3 C 3 N 6 H 3。
更新日期：2021-10-18
中文翻译：
去质子化三聚氰胺以获得高度互连的材料：钾和铷的三聚氰胺盐
通过在液氨中对分子三聚氰胺进行去质子化，获得了一类新材料，即钾和铷的三聚氰胺盐。三聚氰胺钾KC 3 N 6 H 5 ·NH 3和三聚氰胺铷RbC 3 N 6 H 5 ·1/2NH 3通过单晶XRD表征，表明三聚氰胺阴离子与中性分子相比，由于离子亚胺基团，但它仍然形成广泛的氢键网络。三聚氰胺阴离子还显示出增加的 μ 4和 μ 6+1配位能力（三聚氰胺的最大值为 μ 3）。热重分析与质谱联用证明了多步分解，首先释放氨，然后释放氰胺和更大的碎片。提出了一种合理的分解机制。红外光谱允许识别三聚氰胺振动的指纹，例如部分表征同样合成的无定形三聚氰胺钠 NaC 3 N 6 H 5 · n NH 3和建议的三聚氰胺三钾 K 3 C 3 N 6 H 3。
京公网安备 11010802027423号