---
name: "cif_estimate_Z"
section: "1"
platform: "linux"
package: "cod-tools"
version: "3.11.0+dfsg-1"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/cif_estimate_Z"
---

# cif\_estimate\_Z(1)

calculate Z value (i.e. the number of "chemical formula units" in the unit cell) using the provided cell volume, crystal density and molecular weight.

## NAME

cif\_estimate\_Z - calculate Z value (i.e. the number of "chemical formula units" in the unit cell) using the provided cell volume, crystal density and molecular weight.

## SYNOPSIS

cif\_estimate\_Z --options input1.cif input\*.cif

## DESCRIPTION

Calculate Z value (i.e. the number of "chemical formula units" in the unit cell) using the provided cell volume, crystal density and molecular weight.

## OPTIONS

\--use-perl-parser\
                   Use development CIF parser written in Perl.

\--use-c-parser\
                   Use faster C/Yacc CIF parser. Default.

\--allow-fractional-z\
                   Output also fractional Z values. They most probably\
                   indicate errors, but might be needed for data checks.

\--disallow-fractional-z\
                   Treat fractional Z values as errors. Default.

\-c, --always-continue\
                   Continue processing and return successful return status\
                   even if errors are diagnosed.

\-c-, --always-die\
                   Stop and return error status if errors are diagnosed.

\--continue-on-errors\
                   Do not terminate script if errors are raised.

\--die-on-errors\
                   Terminate script immediately if errors are raised.\
                   Default.

\--print-header\
                   Print TSV stream header (column names).

\--no-header\
                   Do not print TSV header. Default.

\--print-datablock-name

\--print-data-block-name\
                   Print the name of the data block and the file name.

\--no-datablock-name

\--no-data-block-name\
                   Do not print data block name. Default.

\--help, --usage\
                   Output a short usage message (this message) and exit.

\--version\
                   Output version information and exit.

## REPORTING BUGS

Report cif\_estimate\_Z bugs using e-mail: cod-bugs@ibt.lt