Deep Learning Accelerated Gold Nanocluster Synthesis

The understanding of inorganic reactions, especially those far from the equilibrium state, is relatively limited due to the inherent complexity. Poor understanding of the underlying synthetic chemistry constrains the design of efficient synthesis routes toward the desired final products, especially those at atomic precision. Using the synthesis of atomically precise gold nanoclusters as a demonstration platform, a deep learning framework for guiding material synthesis is successfully developed to accelerate the workflow. With only 54 examples, the graph convolutional neural networks (GCNN) plus siamese neural networks (SNN) classification model is trained. The prediction capability is demonstrated with the successful prediction of literature‐reported protocols. In addition, understanding of the synthesis process can be acquired from a decision tree trained by plentiful generated data from a well‐trained classification model. This study not only provides a data‐driven method accelerating gold nanocluster synthesis, but also sheds light on understanding complex inorganic material synthesis with low data.

[1]  Zhentao Luo,et al.  Solvent Controls the Formation of Au29(SR)20 Nanoclusters in the CO‐Reduction Method , 2014 .

[2]  Richard J Ingham,et al.  Organic synthesis: march of the machines. , 2015, Angewandte Chemie.

[3]  Frank R Burden,et al.  Quantitative structure-property relationship modeling of diverse materials properties. , 2012, Chemical reviews.

[4]  Charles H. Ward Materials Genome Initiative for Global Competitiveness , 2012 .

[5]  D. Leong,et al.  Understanding seed-mediated growth of gold nanoclusters at molecular level , 2017, Nature Communications.

[6]  N. Yan,et al.  Scalable and Precise Synthesis of Thiolated Au10–12, Au15, Au18, and Au25 Nanoclusters via pH Controlled CO Reduction , 2013 .

[7]  C. Aikens,et al.  Electronic Structure of Ligand-Passivated Gold and Silver Nanoclusters. , 2011, The journal of physical chemistry letters.

[8]  Jianping Xie,et al.  Balancing the rate of cluster growth and etching for gram-scale synthesis of thiolate-protected Au(25) nanoclusters with atomic precision. , 2014, Angewandte Chemie.

[9]  Joseph F. Parker,et al.  Synthesis of monodisperse [Oct4N(+)][Au25(SR)18(-)] nanoparticles, with some mechanistic observations. , 2010, Langmuir : the ACS journal of surfaces and colloids.

[10]  Jianping Xie,et al.  From aggregation-induced emission of Au(I)-thiolate complexes to ultrabright Au(0)@Au(I)-thiolate core-shell nanoclusters. , 2012, Journal of the American Chemical Society.

[11]  Pablo D. Jadzinsky,et al.  Structure of a Thiol Monolayer-Protected Gold Nanoparticle at 1.1 Å Resolution , 2007, Science.

[12]  J. Lee,et al.  Revealing isoelectronic size conversion dynamics of metal nanoclusters by a noncrystallization approach , 2018, Nature Communications.

[13]  Regina Barzilay,et al.  Prediction of Organic Reaction Outcomes Using Machine Learning , 2017, ACS central science.

[14]  Ronald Fagin,et al.  A Model for Knowledge , 2004 .

[15]  R. Jin,et al.  Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities. , 2016, Chemical reviews.

[16]  R. Nasaruddin,et al.  Heating or Cooling: Temperature Effects on the Synthesis of Atomically Precise Gold Nanoclusters , 2017 .

[17]  R. Leapman,et al.  Effect of the charge state (z = -1, 0, +1) on the nuclear magnetic resonance of monodisperse Au25[S(CH2)2Ph]18(z) clusters. , 2011, Analytical chemistry.

[18]  Yuan Zhao,et al.  Computation of Octanol-Water Partition Coefficients by Guiding an Additive Model with Knowledge , 2007, J. Chem. Inf. Model..

[19]  Piotr Dittwald,et al.  Computer-Assisted Synthetic Planning: The End of the Beginning. , 2016, Angewandte Chemie.

[20]  D. Leong,et al.  Identification of a highly luminescent Au22(SG)18 nanocluster. , 2014, Journal of the American Chemical Society.

[21]  J. Lee,et al.  Observation of cluster size growth in CO-directed synthesis of Au25(SR)18 nanoclusters. , 2012, ACS nano.

[22]  J. Xie,et al.  Synthesis of thiolate-protected Au nanoparticles revisited: U-shape trend between the size of nanoparticles and thiol-to-Au ratio. , 2016, Chemical communications.

[23]  Katsuyuki Nobusada,et al.  Glutathione-protected gold clusters revisited: bridging the gap between gold(I)-thiolate complexes and thiolate-protected gold nanocrystals. , 2005, Journal of the American Chemical Society.

[24]  T. Pradeep,et al.  Atomically Precise Clusters of Noble Metals: Emerging Link between Atoms and Nanoparticles. , 2017, Chemical reviews.

[25]  Gregory R. Koch,et al.  Siamese Neural Networks for One-Shot Image Recognition , 2015 .

[26]  Turab Lookman,et al.  Experimental search for high-temperature ferroelectric perovskites guided by two-step machine learning , 2018, Nature Communications.

[27]  B. Grzybowski,et al.  The 'wired' universe of organic chemistry. , 2009, Nature chemistry.

[28]  David Weininger,et al.  SMILES, a chemical language and information system. 1. Introduction to methodology and encoding rules , 1988, J. Chem. Inf. Comput. Sci..

[29]  T. Bürgi,et al.  First enantioseparation and circular dichroism spectra of Au38 clusters protected by achiral ligands , 2012, Nature Communications.

[30]  Mathias Brust,et al.  Synthesis of thiol-derivatised gold nanoparticles in a two-phase liquid-liquid system , 1994 .

[31]  R. Jin,et al.  Size focusing: a methodology for synthesizing atomically precise gold nanoclusters , 2010 .

[32]  Alán Aspuru-Guzik,et al.  Convolutional Networks on Graphs for Learning Molecular Fingerprints , 2015, NIPS.

[33]  E. Gwinn,et al.  Fluorescence Color by Data-Driven Design of Genomic Silver Clusters. , 2018, ACS nano.

[34]  Vijay S. Pande,et al.  Low Data Drug Discovery with One-Shot Learning , 2016, ACS central science.

[35]  Paul Raccuglia,et al.  Machine-learning-assisted materials discovery using failed experiments , 2016, Nature.