Spiro chemical structures

SCHEME 3.68 Chemical structures of spiro-linked blue emitters and transporters. 

Fig. 23 (a) Dependence of the hole mobility in a film of poly-spiro-bifluorene-co-benzothiazole (PSF-BT) as function of the time elapsed after charge carrier generation by a 130 fs laser pulse at different applied voltages. The horizontal lines represent the electron and hole mobilities inferred from ToF experiments, (b) Momentary mobility as a function of the averaged distance that a carrier travelled after a given time. The inset depicts the chemical structure of PSF-BT. From [154] with permission. Copyright (2009) by the American Institute of Physics... 

Figure 18.7. Chemical structures of prorocentrolide (a), prorocentrolide B (b), and spiro-prorocentrimine (c).

Smets and coworkers worked with stretched spirobenzopyran rubber networks obtained by copolymerization of ethyl aaylate with variaWe amounts of a bis-photochrome dimethacrylate as cross-linking agent, namely l,l -(a,a -p-xylyl)-bis-[3, 3 -dimethyl-8-methacryloyloxymethyl-6-nitro-spiro(2H-l-benzopyran-2,2 -indoline)]. The chemical structure of these DIPS-rubbers is given in Fig. 11. 

A new class of polymers with high free volumes has been introduced recently by Budd et al. [290]. The molecular structure of these polymers contains sites of contortion (e.g. spiro-centers) within a rigid backbone (e.g. ladder polymer). A typical chemical structure is shown in Fig. 7.5 A. 

FIGURE 5.11 Chemical structure and basic optical properties (PL and absorption) of PFl 11/12, spiro-PF (sp-PF-1), and endcapped spiro-PF (sp-PF-2). 

Other Names Fluorescein, 2, 7 - w[[ (carboxymethyl)amino]melliyl]- Spiro[isobenzofuran-l (3H),9 -[9Fl]xantliene], glycine derivative 2,7-fi [iV,lV-to(carboxymethyl)aminomethylene]-fluorescein Acetic acid, [(3, 6 -dihydroxy-2, 7 -fluorandiyl)fci>(methylenenitrilo)]telra- Calcein Fluorescein complexon Fluorexon NSC 298193 Oftasceine CA Index Name Glycine, A7V -[(3, 6 -dihydroxy-3-oxospiro[isobenzofiiran-l(3II),9 -[9ir xanthene]-2, 7 -diyl) M(methylene)] is[N-(carboxymethyl)-CAS Registry Number 1461-15-0 Merck Index Number Not listed Chemical Structure... 

CA Index Name Spiro[isobenzofuran-l(3H),9 -[9H]xanthene]-6-carboxylic acid,3, 6 -b (acetyloxy)-3-oxo-CAS Registry Number 3348-03-6 Merck Index Number Not listed Chemical Structure... 

CA Index Name Spiro[7H-dibenzo[c,h]xanthene-7,r(3 H)-isobenzofuran]-5 -carboxylic acid, 3,6a-dihydro-1 l-hydroxy-3,3 -dioxo-CAS Registry Number 145103-60-2 Merck Index Number Not hsted Chemical Structure... 

Other Names Fluorescein 3, 6 -Dihydroxyfluoran 3, 6 -Fluorandiol 3,6-Dihydroxyspiro [xanthene-9,3 -phthalide] 9-(( -Carboxyphenyl)-6-hydroxy-3-isoxanthenone Benzoic acid, 2-(6-hydroxy-3-oxo-3H-xanthen-9-yl)- C.I. 45350 1 C.I. Solvent Yellow 94 D and C Yellow No. 7 D C Yellow No. 7 Fluorescein acid Japan Yellow 201 Japan Yellow No. 201 NSC 667256 Resorcinolphthalein Solvent Yellow 94 Yellow fluorescein CA Index Name Spiro[isobenzofuran-l(3H),9 -[9H]xanthen]-3-one, 3, 6 -dihydroxy-CAS Registry Number 2321-07-5 Merck Index Number 4159 Chemical Structure... 

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