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American Chemical Society, Division of Chemical Information, Education Committee: Computer Searching of Chemical Abstracts: Inorganic/Physical Chemistry Sample Search.

Inorganic/Physical Chemistry Sample Search

Search Topic:

Find articles about kinetics of aquation of dichlorotetrammine or dibromotetrammine cobalt complexes.

Strategy:

  1. For Registry Numbers for
    • Co(NH3)4Cl2
    • Co(NH3)4Br2
  2. Key Terms
    • Kinetic? or Rate? (Use truncation to pick up other forms of the words such as kinetics or rates).
    • Aquation or Hydrolysis
  3. Use (S) to combine the two groups of key words with greater precision.
  4. Use AND to connect the answer numbers for the cobalt complex Registry numbers with the other key terms.

Teaching Points:

Registry File:

CA File:

Search Strategy Table

Search Steps Set Number Number of Documents
File Registry
s c12coh12n4 L1 39
s br2coh12n4 L2 14
s L1 or L2 L3 53
file ca
s L3 and (kinetic? or rate?) (s) (aquation or hydrolysis) L4 8
d L4 ibib 1
log y

Sample Search

Use the Registry file to fine Registry numbers of dichlorotetrammine or dibromotetramminecobalt complexes

=> file registry

FILE 'REGISTRY' ENTERED AT 17:29:41 ON 04 JUN 96
USE IS SUBJECT TO THE TERMS OF YOUR CUSTOMER AGREEMENT
COPYRIGHT (C) 1996 American Chemical Society (ACS)

STRUCTURE FILE UPDATES:  31 MAY 96 HIGHEST RN 176894-09-0 
DICTIONARY FILE UPDATES:  3 JUN 96   HIGHEST RN 176894-09-0

TSCA INFORMATION NOW CURRENT THROUGH DECEMBER 1995

Search the molecular formula of the complexes to find the Registry Numbers. The Registry File lists the finds in a molecular formula in the Hill order. Note that 39 complexes were found.

=> s cl2coh12n4

L1          39 cl2coh12n4

Note the if we expand in the molecular formula field we can view the different compounds that compose of the 39 files found for the previous search. But, in this case, we are interested in all the complexes so we will work with Search L1.

=> e cl2coh12n4/mf

E1           1     CL2COH11N3O/MF
E2           3     C2COH11N3O.CL/MF
E3           4 --> CL2COH12N4/MF
E4           1     CL2COH12N4.1/2O6S2/MF
E5           2     CL2COH12N4.2H2O.IO3/MF
E6           3     CL2COH12N4.CL/MF
E7           1     CL2COH12N4.CL.1/2H2O/MF
E8           2     CL2COH12N4.CL.H2O/MF
E9           1     CL2COH12N4.CL2I/MF
E10          2     CL2COH12N4.CLO4/MF
E11          1     CL2COH12N4.H2O.NO3/MF
E12          2     CL2COH12N4.HO4S/MF
=> s br2coh12n4

L2          14 br2coh12n4

Again, we can expand in the molecular formula field to view the different files composing of the complexes of our previous search.

=> e br2coh12n4/mf

E1           1     BR2COD8O4.2D2O/MF
E2           2     BR2COH11N3O.BR/MF
E3           3 --> BR2COH12N4/MF
E4           2     BR2COH12N4.BR/MF
E5           1     BR2COH12N4.BRO3/MF
E6           1     BR2COH12N4.CL/MF
E7           1     BR2COH12N4.CLO4/MF
E8           1     BR2COH12N4.I3/MF
E9           1     BR2COH12N4.IO4/MF
E10          1     BR2COH12N4.NO3/MF
E11          1     BR2COH4O2/MF
E12          1     BR2COH6N2/MF

Combine the dichloro and dibromo answers into one group to simplify searching.

=> s L1 or L2

L3          53 L1 OR L2

Use the CA file to find relevant articles now that we have found the registry number. Note that L3 will be retained when we switch databases.

=> file ca

FILE 'CA' ENTERED AT 17:31:19 ON 04 JUN 96 USE IS SUBJECT 
TO THE TERMS OF YOUR CUSTOMER AGREEMENT COPYRIGHT (C) 
1996 AMERICAN CHEMICAL SOCIETY (ACS)

FILE COVERS 1967 - 29 May 1996 (960529/ED)  VOL 124 ISS 23

Searching L3 finds articles about any of the cobalt complexes located in the Registry File. Using (S) limits the terms to appearing in the same subfield or sentence.

=> s L3 and (kinetic? or rate?) (S) (aquation or hydrolysis)

    110 L3
 570653 KINETIC?
1108960 RATE?
   2918 AQUATION
  39304 HYDROLYSIS
  28863 (KINETIC? OR RATE?) (S) (AQUATION OR HYDROLYSIS)
L4    8   L3 AND (KINETIC? OR RATE?) (S) (AQUATION OR  
          HYDROLYSIS)

Display the indented bibliographic record of search L4, answer 1. Note terms which match the search are highlighted. Because the (S) operator was used, “kinetics” or “rate” are only highlighted when they are in the same sentence with “aquation” or “hydrolysis”

=> d L4 ibib 1

L4   ANSWER 1 OF 8  CA  COPYRIGHT 1996 ACS

ACCESSION NUMBER:  124:299946  CA
TITLE:             Solvent effect on the aquation of 
                   trans-tetraamminedichlorocobalt  
                   (III) ion
AUTHOR(S):         Grancicova, Ol'ga; Holba, Vladislav
CORPORATE SOURCE:  Dep. of Physical Chemistry, Comenius
                   Univ.,  Bratislava, 842 15, Slovakia
SOURCE:            J. Chem. Res., Synop. (1996), (1), 58-9 
                   CODEN: JRPSDC; 
ISSN:              0308-2342
DOCUMENT TYPE:     Journal
LANGUAGE:          English

Log off in one step.

=> log y
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