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return kwic search for rate out of >500 occurrences
286534 occurrences (No.87 in the rank) during 5 years in the PubMed. [cache]

377) Distal attachments can be used to restrict the mechanism of ferrocene dissociation to proceed through ligand 'peeling', as opposed to the more conventional 'shearing' mechanism of the parent ferrocene, leading the dissociation rate constant to increase by several orders of magnitude at forces of ~1 nN.

--- ABSTRACT ---

PMID:33349695 DOI:10.1038/s41557-020-00600-2

2021 Nature chemistry

* Distal conformational locks on ferrocene mechanophores guide reaction pathways for increased mechanochemical reactivity.

- Mechanophores can be used to produce strain-dependent covalent chemical responses in polymeric materials, including stress strengthening, stress sensing and network remodelling. In general, it is desirable for mechanophores to be inert in the absence of force but highly reactive under applied tension. Metallocenes possess potentially useful combinations of force-free stability and force-coupled reactivity, but the mechanistic basis of this reactivity remains largely unexplored. Here, we have used single-molecule force spectroscopy to show that the mechanical reactivities of a series of ferrocenophanes are not correlated with ring strain in the reactants, but with the extent of rotational alignment of their two cyclopentadienyl ligands. Distal attachments can be used to restrict the mechanism of ferrocene dissociation to proceed through ligand 'peeling', as opposed to the more conventional 'shearing' mechanism of the parent ferrocene, leading the dissociation rate constant to increase by several orders of magnitude at forces of ~1 nN. It also leads to improved macroscopic, multi-responsive behaviour, including mechanochromism and force-induced cross-linking in ferrocenophane-containing polymers.

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(1)172 of	(10)5 that	(19)3 step	(28)2 increased
(2)40 and	(11)5 the	(20)2 (ESR),	(29)2 it
(3)32 was	(12)4 (HR),	(21)2 (RMR)	(30)2 lactate,
(4)31 null	(13)4 among	(22)2 after	(31)2 or
(5)24 in	(14)4 discrimination	(23)2 at	(32)2 respiratory
(6)8 variability	(15)4 is	(24)2 attributable	(33)2 to
(7)6 constants	(16)4 were	(25)2 between	(34)2 top
(8)6 for	(17)3 enzyme	(26)2 constant	(35)2 which
(9)5 (HR)	(18)3 on	(27)2 equations

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--- WordNet output for rate --- =>価格を評定する, 割合, 率, 歩合, 料金, 値段, 相場, 速度, 度合, 人を〜を思う, みなす, 価値がある, 人を〜とみなす, 科金, 評価する Overview of noun rate The noun rate has 4 senses (first 3 from tagged texts) 1. (68) rate -- (a magnitude or frequency relative to a time unit; "they traveled at a rate of 55 miles per hour"; "the rate of change was faster than expected") 2. (39) rate, charge per unit -- (amount of a charge or payment relative to some basis; "a 10-minute phone call at that rate would cost $5") 3. (1) pace, rate -- (the relative speed of progress or change; "he lived at a fast pace"; "he works at a great rate"; "the pace of events accelerated") 4. rate -- (a quantity or amount or measure considered as a proportion of another quantity or amount or measure; "the literacy rate"; "the retention rate"; "the dropout rate") Overview of verb rate The verb rate has 3 senses (first 3 from tagged texts) 1. (9) rate, rank, range, order, grade, place -- (assign a rank or rating to; "how would you rank these students?"; "The restaurant is rated highly in the food guide") 2. (2) rate -- (be worthy of or have a certain rating; "This bond rates highly") 3. (1) rate, value -- (estimate the value of; "How would you rate his chances to become President?"; "Gold was rated highly among the Romans") --- WordNet end ---