(4) Molecular undercoordination, liquid heating, quasisolid cooling, electrification
by a capacitor, or ionic injection upon the acid and salt solvation shorten the
covalent part of the O:H–O bond, but the O:H nonbond responds to perturbation always contrastingly. Compression and base solvation relax the O:H–O
bond contrastingly to the effect of salt solvation. The H–O and the O:H
vibration frequencies and bonding energies determine the specific-heat curves
and the critical temperatures for evaporation, liquidation, and crystallization for
water ice and aqueous solutions. Aqueous solvation disperses the phase
boundaries and modulates the critical temperatures for ice formation, melting,
and evaporation.
Part II landmarked the beginning, and my career focus of Coordination Bonding
and Electronic Dynamics and Spectrometric Engineering that enabled discoveries of orbital hybridization in chemisorption and undercoordination induced bond
contraction. As an independent degree of freedom, atomic or molecular undercoordination should receive deserved attention, as it forms the foundation of defect
physics, surface chemistry, nanoscience and nanotechnology. Orbital hybridization
and bond relaxation have propelled considerable and systematic progress in dealing with physical perturbation and chemical reaction of solid and liquid substances
and functional materials devising.
It is my great pleasure and obligation to share these personal thoughts and
learnings with the community, though further refinement and improvement may be
required—thus, critique from readers is most welcome. I hope that this volume,
amplifying the capabilities of existing spectroscopy techniques, could inspire more
analytically oriented approaches towards extracting bond-electron-phonon information and stimulate more research interest and activities towards predictive controlling of the coordination bonding and electronic dynamics. Directing effort to the
engineering of bond and nobond, nonbonding electronics, materials genomics,
aqueous science, and fine engineering of liquid and solid phases could be even
more challenging, fascinating, promising, and rewarding.
I would like to express my gratitude to colleagues, friends, and peers for their
encouragement, invaluable input, and support, to my students and collaborators for
their contribution, and to my family, my wife Meng Chen and daughter Yi, for their
assistance, patience, support, and understanding throughout this fruitful and
pleasant journey.
Singapore
February 2020
Chang Q Sun
Preface
xiii
by a capacitor, or ionic injection upon the acid and salt solvation shorten the
covalent part of the O:H–O bond, but the O:H nonbond responds to perturbation always contrastingly. Compression and base solvation relax the O:H–O
bond contrastingly to the effect of salt solvation. The H–O and the O:H
vibration frequencies and bonding energies determine the specific-heat curves
and the critical temperatures for evaporation, liquidation, and crystallization for
water ice and aqueous solutions. Aqueous solvation disperses the phase
boundaries and modulates the critical temperatures for ice formation, melting,
and evaporation.
Part II landmarked the beginning, and my career focus of Coordination Bonding
and Electronic Dynamics and Spectrometric Engineering that enabled discoveries of orbital hybridization in chemisorption and undercoordination induced bond
contraction. As an independent degree of freedom, atomic or molecular undercoordination should receive deserved attention, as it forms the foundation of defect
physics, surface chemistry, nanoscience and nanotechnology. Orbital hybridization
and bond relaxation have propelled considerable and systematic progress in dealing with physical perturbation and chemical reaction of solid and liquid substances
and functional materials devising.
It is my great pleasure and obligation to share these personal thoughts and
learnings with the community, though further refinement and improvement may be
required—thus, critique from readers is most welcome. I hope that this volume,
amplifying the capabilities of existing spectroscopy techniques, could inspire more
analytically oriented approaches towards extracting bond-electron-phonon information and stimulate more research interest and activities towards predictive controlling of the coordination bonding and electronic dynamics. Directing effort to the
engineering of bond and nobond, nonbonding electronics, materials genomics,
aqueous science, and fine engineering of liquid and solid phases could be even
more challenging, fascinating, promising, and rewarding.
I would like to express my gratitude to colleagues, friends, and peers for their
encouragement, invaluable input, and support, to my students and collaborators for
their contribution, and to my family, my wife Meng Chen and daughter Yi, for their
assistance, patience, support, and understanding throughout this fruitful and
pleasant journey.
Singapore
February 2020
Chang Q Sun
Preface
xiii