TY - JOUR
T1 - Au133(SPh-tBu)52 Nanomolecules
T2 - X-ray Crystallography, Optical, Electrochemical, and Theoretical Analysis
AU - Dass, Amala
AU - Theivendran, Shevanuja
AU - Nimmala, Praneeth Reddy
AU - Kumara, Chanaka
AU - Jupally, Vijay Reddy
AU - Fortunelli, Alessandro
AU - Sementa, Luca
AU - Barcaro, Giovanni
AU - Zuo, Xiaobing
AU - Noll, Bruce C.
N1 - Publisher Copyright:
© 2015 American Chemical Society.
PY - 2015/4/15
Y1 - 2015/4/15
N2 - Crystal structure determination has revolutionized modern science in biology, chemistry, and physics. However, the difficulty in obtaining periodic crystal lattices which are needed for X-ray crystal analysis has hindered the determination of atomic structure in nanomaterials, known as the "nanostructure problem". Here, by using rigid and bulky ligands, we have overcome this limitation and successfully solved the X-ray crystallographic structure of the largest reported thiolated gold nanomolecule, Au133S52. The total composition, Au133(SPh-tBu)52, was verified using high resolution electrospray ionization mass spectrometry (ESI-MS). The experimental and simulated optical spectra show an emergent surface plasmon resonance that is more pronounced than in the slightly larger Au144(SCH2CH2Ph)60. Theoretical analysis indicates that the presence of rigid and bulky ligands is the key to the successful crystal formation.
AB - Crystal structure determination has revolutionized modern science in biology, chemistry, and physics. However, the difficulty in obtaining periodic crystal lattices which are needed for X-ray crystal analysis has hindered the determination of atomic structure in nanomaterials, known as the "nanostructure problem". Here, by using rigid and bulky ligands, we have overcome this limitation and successfully solved the X-ray crystallographic structure of the largest reported thiolated gold nanomolecule, Au133S52. The total composition, Au133(SPh-tBu)52, was verified using high resolution electrospray ionization mass spectrometry (ESI-MS). The experimental and simulated optical spectra show an emergent surface plasmon resonance that is more pronounced than in the slightly larger Au144(SCH2CH2Ph)60. Theoretical analysis indicates that the presence of rigid and bulky ligands is the key to the successful crystal formation.
UR - http://www.scopus.com/inward/record.url?scp=84927932622&partnerID=8YFLogxK
U2 - 10.1021/ja513152h
DO - 10.1021/ja513152h
M3 - Article
AN - SCOPUS:84927932622
SN - 0002-7863
VL - 137
SP - 4610
EP - 4613
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 14
ER -