On the Quantitative Measure of a Sonochemical Effect in Heterogeneous Sonochemistry

Sonochemical Reaction of Bifunctional Molecules on Silicon (111) Hydride Surface

“…In their context, 'true' sonochemical reaction was described as a reaction in which acoustic cavitation creates a coordinated unsaturated element and free radicals to influence the chemical outcome of the reaction in homogeneous solution, while the outcome of the 'false' sonochemical reaction was due to the mechanistic impact of sonochemical reaction in a heterogeneous solution. The notion that a sonochemical-based reaction is merely a mechanistic rather than a chemical operation was also discussed by Kegelaers et al [77] who, after repeating the same series of experiments as described by Ando et al [75], came to the different conclusion that sonochemical reaction served as a mechanistic approach akin to those from extensive stirring that shortens the reaction time [78] but by itself did not induce a chemical change. Despite various examples of 'true' [79][80][81] and 'false' [82,83] sonochemical reactions in literature, which so far remain as the most common explanations, it is necessary to acknowledge that the exact mechanism of sonication chemistry has not yet been clearly elucidated [84].…”

Sonochemical Reaction of Bifunctional Molecules on Silicon (111) Hydride Surface

“…In their context, 'true' sonochemical reaction was described as a reaction in which acoustic cavitation creates a coordinated unsaturated element and free radicals to influence the chemical outcome of the reaction in homogeneous solution, while the outcome of the 'false' sonochemical reaction was due to the mechanistic impact of sonochemical reaction in a heterogeneous solution. The notion that a sonochemical-based reaction is merely a mechanistic rather than a chemical operation was also discussed by Kegelaers et al [77] who, after repeating the same series of experiments as described by Ando et al [75], came to the different conclusion that sonochemical reaction served as a mechanistic approach akin to those from extensive stirring that shortens the reaction time [78] but by itself did not induce a chemical change. Despite various examples of 'true' [79][80][81] and 'false' [82,83] sonochemical reactions in literature, which so far remain as the most common explanations, it is necessary to acknowledge that the exact mechanism of sonication chemistry has not yet been clearly elucidated [84].…”

Comparative Studies on Conventional and Ultrasound‐Assisted Synthesis of Novel Homoallylic Alcohol Derivatives Linked to Sulfonyl Dibenzene Moiety in Aqueous Media

“…Although the energy delivered through the cleansing bath is not that high, there is still acoustic cavitation in the reaction �ask. In heterogeneous systems the acoustic cavitation is known to vastly improve diffusion rates and accelerate the reactions through microjets formed from asymmetrical collapses of the bubbles, and similar effects can be achieved with high speed mechanical stirring [61]. But there are also several examples where ionic reactions are accelerated by physical effects (better mass transport) in homogenous reactions-oen called "false sonochemistry" [62].…”

A Two-Directional Approach to a (−)-Dictyostatin C11−C23 Segment: Development of a Highly Diastereoselective, Kinetically-Controlled Meerwein−Ponndorf−Verley Reduction

“…The physical effects of sonication on heterogeneous reactions have been of recent interest . Ultrasonic agitation provides thermal and pressure effects due to cavitation.…”

Sonochemical Reaction of Bifunctional Molecules on Silicon (111) Hydride Surface

“…In their context, 'true' sonochemical reaction was described as a reaction in which acoustic cavitation creates a coordinated unsaturated element and free radicals to influence the chemical outcome of the reaction in homogeneous solution, while the outcome of the 'false' sonochemical reaction was due to the mechanistic impact of sonochemical reaction in a heterogeneous solution. The notion that a sonochemical-based reaction is merely a mechanistic rather than a chemical operation was also discussed by Kegelaers et al [77] who, after repeating the same series of experiments as described by Ando et al [75], came to the different conclusion that sonochemical reaction served as a mechanistic approach akin to those from extensive stirring that shortens the reaction time [78] but by itself did not induce a chemical change. Despite various examples of 'true' [79][80][81] and 'false' [82,83] sonochemical reactions in literature, which so far remain as the most common explanations, it is necessary to acknowledge that the exact mechanism of sonication chemistry has not yet been clearly elucidated [84].…”

Comparative Studies on Conventional and Ultrasound‐Assisted Synthesis of Novel Homoallylic Alcohol Derivatives Linked to Sulfonyl Dibenzene Moiety in Aqueous Media

“…Although the energy delivered through the cleansing bath is not that high, there is still acoustic cavitation in the reaction �ask. In heterogeneous systems the acoustic cavitation is known to vastly improve diffusion rates and accelerate the reactions through microjets formed from asymmetrical collapses of the bubbles, and similar effects can be achieved with high speed mechanical stirring [61]. But there are also several examples where ionic reactions are accelerated by physical effects (better mass transport) in homogenous reactions-oen called "false sonochemistry" [62].…”

A Two-Directional Approach to a (−)-Dictyostatin C11−C23 Segment: Development of a Highly Diastereoselective, Kinetically-Controlled Meerwein−Ponndorf−Verley Reduction

“…The physical effects of sonication on heterogeneous reactions have been of recent interest . Ultrasonic agitation provides thermal and pressure effects due to cavitation.…”

Sonochemical Reaction of Bifunctional Molecules on Silicon (111) Hydride Surface

“…In their context, 'true' sonochemical reaction was described as a reaction in which acoustic cavitation creates a coordinated unsaturated element and free radicals to influence the chemical outcome of the reaction in homogeneous solution, while the outcome of the 'false' sonochemical reaction was due to the mechanistic impact of sonochemical reaction in a heterogeneous solution. The notion that a sonochemical-based reaction is merely a mechanistic rather than a chemical operation was also discussed by Kegelaers et al [77] who, after repeating the same series of experiments as described by Ando et al [75], came to the different conclusion that sonochemical reaction served as a mechanistic approach akin to those from extensive stirring that shortens the reaction time [78] but by itself did not induce a chemical change. Despite various examples of 'true' [79][80][81] and 'false' [82,83] sonochemical reactions in literature, which so far remain as the most common explanations, it is necessary to acknowledge that the exact mechanism of sonication chemistry has not yet been clearly elucidated [84].…”

Comparative Studies on Conventional and Ultrasound‐Assisted Synthesis of Novel Homoallylic Alcohol Derivatives Linked to Sulfonyl Dibenzene Moiety in Aqueous Media

“…Although the energy delivered through the cleansing bath is not that high, there is still acoustic cavitation in the reaction �ask. In heterogeneous systems the acoustic cavitation is known to vastly improve diffusion rates and accelerate the reactions through microjets formed from asymmetrical collapses of the bubbles, and similar effects can be achieved with high speed mechanical stirring [61]. But there are also several examples where ionic reactions are accelerated by physical effects (better mass transport) in homogenous reactions-oen called "false sonochemistry" [62].…”

A Two-Directional Approach to a (−)-Dictyostatin C11−C23 Segment: Development of a Highly Diastereoselective, Kinetically-Controlled Meerwein−Ponndorf−Verley Reduction

“…The physical effects of sonication on heterogeneous reactions have been of recent interest . Ultrasonic agitation provides thermal and pressure effects due to cavitation.…”