The coordination chemistry at gold nanoparticles
The coordination chemistry at gold nanoparticles
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金纳米颗粒的配位化学
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
K. Araki
中科院分区：
文献类型：
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作者：
H. Toma;V. M. Zamarion;S. Toma;K. Araki
在金纳米粒子中，表面金属原子起着主要作用，通过与相关金属络合物类似的方式与供体-受体物种或配体相互作用来确定其化学和物理性质。此外，与激发光的频率共振的金属电子的相干振荡产生局部表面等离子体，负责增强局部电场和Sers效应，允许在化学，生物学和纳米技术中的广泛应用。多官能桥连配体可用于同时结合金属离子和表面原子。这种方法的吸引人的一点是利用金属络合物的电荷控制稳定的可能性，同时赋予新的特性和性质的改性纳米粒子。事实上，一个新的，令人兴奋的配位化学领域可以设想，结合金属纳米粒子和金属配合物，在超分子和表面等离子体共振效应的光。
In gold nanoparticles the surface metal atoms play a major role, determining their chemical and physical properties by interacting with donor-acceptor species or ligands in a similar way as the related metal complexes. In addition, coherent oscillations of the metal electrons in resonance with the frequency of the exciting light give rise to localized surface plasmons responsible for an enhancement of the local electric field and SERS effect, allowing a wide range of applications in chemistry, biology and nanotechnology. Multifunctional bridging ligands can be employed for simultaneously binding metal ions and surface atoms. The attractive point of this approach is the possibility of exploiting the charge controlled stabilization by the metal complexes, while imparting new characteristics and properties to the modified nanoparticles. As a matter of fact, a new, exciting field of coordination chemistry can be envisaged, combining metal nanoparticles and metal complexes, in the light of supramolecular and surface plasmon resonance effects.