Weight

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Weight

Either Gross Weight, Net Weight, or Tare Weight.

Weighted

Describing an average in which some values count for more than others. For example, if an index consisting of 10 stocks is weighted for price, this means that the average price of the stocks will move more when the stocks with higher price move. Most indices use weighted averages so "smaller" values do not affect the index inordinately. This helps correct for the fact that averages tend to be affected by extreme values. One of the most common ways of weighting an average is to weight for market capitalization.

References in periodicals archive ?

(%) for [C.sub.30] [H.sub.28] [N.sup.2] O: (Mol. Wt. = 432) C, 83.30; H, 6.52; N, 6.48.

(%) for [C.sub.31] [H.sub.30] [N.sub.2] O: (Mol. Wt. = 446) C, 83.37; H, 6.77; N, 6.27.

(%) for [C.sub.29] [H.sub.28] [N.sub.2] O: (Mol. Wt. = 420) C, 82.85; H, 6.66; N, 6.66.

Synthesis and biological evaluation of aminonaphthols incorporated indole derivatives

formula: C18H16ClN3O2S; Mol. Wt.: 373; IR (KBr, vmax/cm-1): 3347 (N-H), 3095 (Ar C-H), 1683 (C=N), 1642 (C=O), 1590 (Ar C=C), 1270 (C-O-C), 680 (C-Cl), 623 (C-S); 1H-NMR (400 MHz, CDCl3, d/ppm): 8.73 (s, 1H, CONH), 7.92 (d, J = 8.0 Hz, 1H, H-6'), 7.56 (d, J = 8.0 Hz, 1H, H-3'), 7.54 (d, J = 7.6 Hz, 1H, H-6'''), 7.49 (t, J = 7.6 Hz, 1H, H-5'), 7.41 (t, J = 7.6 Hz, 1H, H-4'), 7.07 (t, J = 7.6 Hz, 1H, H-5'''), 6.97 (d, J = 7.6 Hz, 1H, H-4'''), 4.06 (s, 2H, H-2''), 2.32 (s, 3H, CH3-2'''), 2.14 (s, 3H, CH3-3'''); EIMS (m/z): 375 [M+2]+, 373 [M]+, 253 [C10H6ClN2O2S]+, 225 [C9H6ClN2OS]+, 212 [C8H5ClN2OS] , 193 [C10H11NOS] , 179 [C8H4ClN2O]+, 153 [C7H4ClNO]+, 148 [C9H10NO]+, 139 [C7H4ClO]+, 137 [C7H4ClN]+, 121 [C8H11N]+, 111 [C6H4Cl]+, 105 [C8H9]+.

formula: C18H16ClN3O2S; Mol. Wt.: 373; IR (KBr, vmax/cm-1): 3326 (N-H), 3077 (Ar C-H), 1663 (C=N), 1643 (C=O), 1592 (Ar C=C), 1222 (C-O-C), 684 (C-Cl), 630 (C-S); 1H-NMR (400 MHz, CDCl3, d/ppm): 8.73 (s, 1H, CONH), 7.90 (d, J = 7.6 Hz, 1H, H-6'), 7.68 (d, J = 7.6 Hz, 1H, H-6'''), 7.55 (d, J = 8.0 Hz, 1H, H-3'), 7.48 (t, J = 7.6 Hz, 1H, H-5'), 7.41 (t, J = 7.6 Hz, 1H, H-4'), 6.99 (d, J = 7.6 Hz, 1H, H-5'''), 6.96 (s, 1H, H-3'''), 4.06 (s, 2H, H- 2''), 2.25 (s, 3H, CH3-2'''), 2.22 (s, 3H, CH3-4'''); EIMS (m/z): 375 [M+2]+, 373 [M]+, 253 [C10H6ClN2O2S]+, 225 [C9H6ClN2OS]+, 212 [C8H5ClN2OS]+, 193 [C10H11NOS]+, 179 [C8H4ClN2O]+, 153 [C7H4ClNO]+, 148 [C9H10NO]+, 139 [C7H4ClO]+, 137 [C7H4ClN]+, 121 [C8H11N]+, 111 [C6H4Cl]+, 105 [C8H9]+.

formula: C18H16ClN3O2S; Mol. Wt.: 373; IR (KBr, vmax/cm-1): 3293 (N-H), 3069 (Ar C-H), 1669 (C=N), 1650 (C=O), 1599 (Ar C=C), 1197 (C-O-C), 680 (C-Cl), 623 (C-S); 1H-NMR (400 MHz, CDCl3, d/ppm): 8.73 (s, 1H, CONH), 7.90 (dd, J = 7.6, 2.4 Hz, 1H, H-6'), 7.53 (d, J = 8.0 Hz, 1H, H- 3'), 7.48 (dt, J = 7.6, 2.4 Hz, 1H, H-5'), 7.41 (t, J = 7.6 Hz, 1H, H-4'), 7.12 (s, 1H, H-6'''), 7.01 (d, J = 7.6 Hz, 1H, H-3'''), 6.87 (d, J = 8.0 Hz, 1H, H-4'''), 4.05 (s, 2H, H-2''), 2.29 (s, 3H, CH3-2'''), 2.21 (s, 3H, CH3- 5'''); EIMS (m/z): 375 [M+2]+, 373 [M]+, 253 [C10H6ClN2O2S]+, 225 [C9H6ClN2OS]+, 212 [C8H5ClN2OS]+, 193 [C10H11NOS]+, 179 [C8H4ClN2O]+, 153 [C7H4ClNO]+, 148 [C9H10NO]+, 139 [C7H4ClO]+, 137 [C7H4ClN]+, 121 [C8H11N]+, 111 [C6H4Cl]+, 105 [C8H9]+.

Synthesis, Characterization and Biological Activity of Some New S-Substituted Derivatives of 5-(2-Chlorophenyl)-1,3,4-Oxadiazol-2-Thiol

3'-(thiazol-2-yl)-4'-thioxo-6'-p-totyl-3', 4'-dihydrospiro [indoline-3, 2'-[1, 3, 5] oxadiazin]-2-one (5b): [C.sub.20][H.sub.14][N.sub.4][O.sub.2][S.sub.2]; Mol. wt.: 406.48, Yield:72%, M.P.: 283- 285[degrees]C, IR (KBr) [cm.sup.-1]: 1663 [cm.sup.-1] (C=O of isatin), 1552 [cm.sup.-1] (C=N of thiazole), 688 (C-S-C of thiazole), 1140[cm.sup.-1] (C=S).

6'-(4-Bromophenyl)-3'-(thiazol-2-yl)-4'-thioxo-3',4'-dihydrospiro[indoline-3,2'- [1,3,5]-oxadiazin]-2-one (5d): [C.sub.19][H.sub.11]Br[N.sub.4][O.sub.2][S.sub.2]; Mol. wt.: 471.35; Yield: 72%, M.P.: 237-238[degrees]C, IR (KBr) [cm.sup.-1]: 1682 [cm.sup.-1] (C=O of isatin), 1545[cm.sup.-1] (C=N of thiazole), 702 [cm.sup.-1] (C-S-C of thiazole), 1178[cm.sup.-1] (C=S), 578 [cm.sup.-1] of (C-Br).

Synthesis and antimicrobial evaluation of carbonyl isothiocyanate derivatives spiro [indoline-3,2'-[1,3,5]oxadiazin]-2-one

For.: C18H16ClN3O2S; Mol. Wt.:373.8; IR (KBr, cm-1) vmax: 3336 (N-H stretching),3087 (C-H of aromatic ring), 1671 (C=N ofOxadiazole ring), 1653 (C=O), 1563 (C=C aromatic), 1283 (C-O-C bond), 687 (C-Cl bond), 635 (C-S bond ); 1H-NMR (400 MHz, CDCl3, d / ppm): 8.69 (s, 1H, -NH), 7.91 (d, J = 8.4 Hz, 2H, H-3' and H-5'),7.68 (d, J = 7.6 Hz, 1H, H-6'''), 7.46 (d, J = 8.4 Hz,2H, H-2' and 6'), 6.97 (d, J = 7.6 Hz, 1H, H-5'''), 6.96 (s, 1H, H-3'''), 4.04 (s, 2H, CH2-2''), 2.25 (s, 3H, CH3-2'''), 2.20 (s, 3H, CH3-4'''); EIMS (m/z): 375 (4%) [M+2]+, 373 (12%) [M+], 253 (17%), 139 (100%),120 (71%), 111 (37%), 77 (21%).

For.: C18H16ClN3O2S; Mol. Wt.: 373.8; IR (KBr, cm-1) vmax: 3313 (N-H stretching), 3063 (C- H of aromatic ring), 1677 (C=N of Oxadiazole ring),1641 (C=O), 1551 (C=C aromatic), 1263 (C-O-Cbond), 679 (C-Cl bond), 643 (C-S bond); 1H-NMR

N-Substituted Derivatives of 5-(4-chlorophenyl)-1,3,4-oxadiazol-2-yl-2-sulfanyl acetamide as Valuable Bioactive Compounds

1-(Phenylsulfonyl)piperidin-4-carbohydrazide (2): White Crystals; Yield 80%; m.p: 119; Molecular formula: C 12 H 19 N 3 O 3 S; Mol. Wt. 283; IR (KBr, cm -1 ) v max : 3310, 3018, 2926, 1529, 1325, 1630; 1 H-NMR (300 MHz, CDCl 3 Delta / ppm): 7.85 (s, NH-CO), 7.78 (dd, J = 7.8, 1.8 Hz, 2H, H-2', 6'), 7.66-7.63 (m, 3H, H-3' to 5'), 3.79 (t, J = 3.6 Hz, 2H, H eq -2 and 6), 3.75 (t, J = 3.6 Hz, 2H, H ax -2 and 6), 2.12- 1.99 (m, 1H, H-4), 1.79-1.75 (m, 4H, H-3, 5); EIMS m/z (%): 283 (M + , 13), 252 (10), 224 (12), 156 (100), 141 (12), 77 (30); Anal.

5-[1-(Phenylsulfonyl)piperidin-4-yl]-1,3,4- Oxadiazol-2-thiol (3): White powder solid; Yield 88%; m.p: 210- 213; Molecular formula: C 13 H 15 N 3 O 3 S 2 ; Mol. Wt. 325; IR (KBr, cm -1 ) v max : 3035, 2250, 1593, 1326; 1 H-NMR (300 MHz, CDCl 3 Delta / ppm): 7.80 (dd, J = 7.8, 1.8 Hz, 2H, H-2", 6"), 7.67-7.65 (m, 3H, H-3" to 5"), 3.75 (t, J = 3.6 Hz, 2H, H eq -2' and 6'), 3.71 (t, J = 3.6 Hz, 2H, H ax -2' and 6'), 2.80-2.75 (m, 1H, H-4'), 1.80-1.76 (m, 4H, H-3', 5'); EIMS m/z (%): 325 (M + , 8), 252 (14), 224 (10), 157 (14), 156 (100), 141 (14), 82 (93), 77 (31), 55 (12); Anal.

Synthesis of Potent Antibacterial Agents Derived from 5-[1-(Phenylsulfonyl)piperidin-4-yl]-1,3,4-Oxadiazol-2-thiol

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