“…Although a mechanism of this type could also be proposed for the first step of the reactions described here, an alternative proposal in which the attack of the entering ligand is concomitant with a lengthening of several bonds of the cluster, and not with cleavage of a localized RuX bond, would also be possible 16. Such a proposal is substantiated by a few reports that describe closed, trinuclear, ligand‐bridged, 50‐electron, carbonyl clusters of ruthenium17 and osmium18 in which the three MM distances are longer than expected for normal single bonds but shorter than open M⋅⋅⋅M edges.…”
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD).
Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD.
The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC).
Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD).
Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD.
The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC).
Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…Although a mechanism of this type could also be proposed for the first step of the reactions described here, an alternative proposal in which the attack of the entering ligand is concomitant with a lengthening of several bonds of the cluster, and not with cleavage of a localized RuX bond, would also be possible 16. Such a proposal is substantiated by a few reports that describe closed, trinuclear, ligand‐bridged, 50‐electron, carbonyl clusters of ruthenium17 and osmium18 in which the three MM distances are longer than expected for normal single bonds but shorter than open M⋅⋅⋅M edges.…”
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD).
Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD.
The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC).
Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD).
Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD.
The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC).
Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…Further addition of a second equivalent of K-Selectride afforded the anion K[Ru 3 (μ-H)(μ-MeCCMe)(CO) 9 ] ( 6a ) in quantitative spectroscopic yield (Scheme ). As previously noted for complexes of the type [Ru 3 (μ-Cl)(μ-RCCR)(CO) 9 ] - , 9a,b nucleophilic attack by a hydride takes place at the metal, resulting in a facile displacement of the halide. Here, the same substitution reaction takes place with concomitant transfer of the hydride from the metal to the carbon center (reductive elimination), thereby requiring 2 equiv of K-Selectride.…”
Section: Resultsmentioning
confidence: 62%
“…As noted by Basolo, the observed kinetics for complexation of alkynols are particularly fast, since the protic character of the ligand itself facilitates a transient opening of the Ru−Cl bond. Upon protonation of 4a by HBF 4 in THF, the neutral allenyl complex 4b was produced. 9c, 3 Synthesis of Propargylic Complexes 4a and 4b a a [Ru] = Ru(CO) 3 . …”
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD).
Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD.
The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC).
Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD).
Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD.
The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC).
Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…The presence of trifluoroacetate in the reaction mixture may be a significant factor, given that acetate salts have been used as catalysts for the decarbonylation and ligand substitution reactions of group 8 metal carbonyls. 17 The apparently robust nature of the bidentate carbamoyl coordination is perhaps surprising given the typically soft nature of low-valent iron centers, although this feature has also emerged in our study of related halide/carbamoyl complexes of divalent iron. 1 Furthermore, related bidentate aroyl complexes of iron have been described by Girolami, 18 and these readily coordinate CO under comparatively mild conditions with the assumption of monodentate aroyl coordination.…”
Section: Resultsmentioning
confidence: 69%
“…is crucial to the progress of the reaction in that the addition of PPh 3 immediately following trifluoroacetylation (within 10−15 min, −78 °C) leads to almost exclusive formation of [Fe(η 2 -OCN i Pr 2 )(CO) 2 (PPh 3 ) 2 ](O 2 CCF 3 ) ( 2a·O 2 CCF 3 ), while the formation of 1 is maximized by a delay of over an hour (at −78 °C). The presence of trifluoroacetate in the reaction mixture may be a significant factor, given that acetate salts have been used as catalysts for the decarbonylation and ligand substitution reactions of group 8 metal carbonyls …”
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD).
Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD.
The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC).
Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD).
Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD.
The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC).
Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
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